lean2

Author	SHA1	Message	Date
Leonardo de Moura	c56df132b8	refactor(kernel): remove semantic attachments from the kernel Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-02-02 14:48:27 -08:00
Leonardo de Moura	2b7bc7b673	test(tests/lean/exp): simulating HOL constructions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-31 17:59:57 -08:00
Leonardo de Moura	e3dc552c39	fix(library/simplifier): nontermination The example tests/lua/simp1.lua demonstrates the issue. The higher-order matcher matches closed terms that are definitionally equal. So, given a definition definition a := 1 it will match 'a' with '1' since they are definitionally equal. Then, if we have a theorem theorem a_eq_1 : a = 1 as a rewrite rule, it was triggering the following infinite loop when simplifying the expression "a" a --> 1 --> 1 --> 1 ... The first simplification is expected. The other ones are not. The problem is that "1" is definitionally equal to "a", and they match. The rewrite_rule_set manager accepts the rule a --> 1 since the left-hand-side does not occur in the right-hand-side. To avoid this loop, we test if the new expression is not equal to the previous one. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-31 15:55:21 -08:00
Leonardo de Moura	1d85267d26	fix(library/simplifier): assumptions/context may contain equations where the left-hand-side is a metavariable or semantic attachment Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-31 15:38:22 -08:00
Leonardo de Moura	110ca84984	feat(library/simplifier): allow the user to associate a simplifier monitor with the lua_State object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-31 13:49:24 -08:00
Leonardo de Moura	759aa61f70	refactor(builtin/kernel): define if-then-else using Hilbert's operator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-30 19:28:42 -08:00
Leonardo de Moura	b45ab9dc30	feat(library/elaborator): use equality constraints instead of convertability constraints on definitions Convertability constraints are harder to solve than equality constraints, and it seems they don't buy us anything definitions. They are just increasing the search space for the elaborator. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-30 14:13:21 -08:00
Leonardo de Moura	8c1f6b9055	fix(kernel/typechecker): allow elaborator to infer (Type U+1) In the new test elab8.lean, the parameter B is in (Type U+1). Before, this commit, the type checker was forcing all metavariables that must be types to be <= (Type U). This restriction was preventing the elaborator from succeeding in reasonable cases. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-30 14:00:01 -08:00
Leonardo de Moura	41f5e2a067	feat(library/simplifier): statically check (conditional) equations (aka rewrite rules) to verify whether we can skip type checking when using them in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 18:32:40 -08:00
Leonardo de Moura	01259b1e84	feat(kernel): make sure U is the maximal universe Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 16:31:00 -08:00
Leonardo de Moura	ea6bf224e5	feat(frontends/lean): make the parser accept (Type -> ...) Before this commit, the parser would accept only a universe level or a ')' after '(' 'Type' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 15:23:20 -08:00
Leonardo de Moura	4f3127d3d5	fix(library/simplifier): check if the given types are convertible to ceq expected types Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 15:15:55 -08:00
Leonardo de Moura	0bb8fe75b3	test(tests/lean): new simplifier test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 14:21:18 -08:00
Leonardo de Moura	a19f9d4846	feat(library/simplifier): discard conditional equations that are clearly non-terminating Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 13:56:45 -08:00
Leonardo de Moura	dd6aae378f	fix(library/simplifier): must use metavar_env in is_ceq, otherwise it may ceqs that contain metavariables Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 13:29:20 -08:00
Leonardo de Moura	4dc3aa46c3	feat(frontends/lean): allow tactics to be used in axiom/variable declarations and in the type of definitions/theorems; add a new test showing the need for this feature Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 12:02:12 -08:00
Leonardo de Moura	069e5edf6b	fix(library/simplifier): include flag indicating if the proof generated by simplifier is a homogenous or heterogenous equality, use flag to fix bug in the simp_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 12:01:01 -08:00
Leonardo de Moura	62408a6adc	test(tests/lean): move simp_loop test to slow subdirectory This example produces a stackoverflow on Valgrind. We don't execute Valgrind on tests in the slow subdirectory. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 10:32:48 -08:00
Leonardo de Moura	92ba4e8b2d	feat(library/simplifier): add support for metavariables in conditional rewrite rules Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-29 08:34:04 -08:00
Leonardo de Moura	ee4344076e	feat(library/simplifier): improve error message when simplifier is looping Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-28 19:36:31 -08:00
Leonardo de Moura	72c607846a	test(tests/lean): add Jeremy's proof to test suite Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-28 16:05:46 -08:00
Leonardo de Moura	7f53cb9601	feat(frontends/lean/parser): add_rewrite take the 'using' command into account Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-28 01:15:28 -08:00
Leonardo de Moura	b31ef34787	feat(library/simplifier): preserve binder names when applying higher-order rewrite rules Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-28 00:50:27 -08:00
Leonardo de Moura	6da1b447f0	fix(library/hop_match): do not match iff with = Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-28 00:21:05 -08:00
Leonardo de Moura	db45d02078	fix(tests/lean): test discrepancy on OSX Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-27 23:31:35 -08:00
Leonardo de Moura	7b88d68afb	test(tests/lean): add test using simplifier monitor for tracking failures Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-27 15:11:16 -08:00
Leonardo de Moura	8bccfb947a	feat(library/simplifier): expose simplier and simplifier_monitor objects in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-27 15:02:05 -08:00
Leonardo de Moura	b26035fcf6	feat(kernel/type_checker): improve application type mismatch error messages Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-27 09:45:17 -08:00
Leonardo de Moura	4d25cb7f47	feat(library/tactic): add simplify_tactic based on the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-26 18:53:18 -08:00
Leonardo de Moura	844572c382	feat(library/simplifier): support for dependent simplification in Pi/forall expressions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-26 00:32:05 -08:00
Leonardo de Moura	e8bba1ebf3	fix(frontends/lean/frontend): the definition of the explicit version @f must be definitionally equal to f Before this commit, the explicit version @f of a constant f with implicit arguments as not definitionally equal to f. For example, if we had variable f {A : Type} : A -> Bool Then, the definition of @f was definition @f (A : Type) (a : A) : Bool := f A a This definition is equivalent to fun A a, f A a which is not definitionally equal to f since definitionally equality in Lean ignores Eta conversion. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-25 20:34:28 -08:00
Leonardo de Moura	9fb3ccb4c0	feat(library/simplifier): support for dependent simplification in lambda expressions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-25 16:54:42 -08:00
Leonardo de Moura	5b13ef1b90	test(tests/lean): new simplifier test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-25 10:56:49 -08:00
Leonardo de Moura	7015089734	fix(library/simplifier): move to locally nameless approach in the simplifier. Contextual simplification may add rewriting rules with free variables, and it is a mess to manage them when using de Bruijn indices Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-25 10:49:44 -08:00
Leonardo de Moura	7a4eb4b8ed	feat(library/simplifier): contextual simplification for A -> B Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 22:32:55 -08:00
Leonardo de Moura	c2381e43f1	fix(library/simplifier): bug in cast elimination Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 21:25:09 -08:00
Leonardo de Moura	35ad156a46	fix(tests/lean): make sure pretty print and parse test passes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:23:55 -08:00
Leonardo de Moura	8f455f5965	fix(frontends/lean): bug in scope construct Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:23:29 -08:00
Leonardo de Moura	7f3e2b3ef4	fix(frontends/lean/parser): bug in 'using' construct Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:09:46 -08:00
Leonardo de Moura	8e0888828d	fix(library/simplifier): missing check in mk_hcongr_th Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:09:46 -08:00
Leonardo de Moura	1a3660180e	test(tests/lean): add new simplifier test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:09:46 -08:00
Leonardo de Moura	26bea77721	fix(library/simplifier): bug in heterogeneous equality support, and universe commutativity support in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-24 17:09:46 -08:00
Leonardo de Moura	dbc100cc2e	feat(library/simplifier): cast elimination in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 17:28:14 -08:00
Leonardo de Moura	cd87cb3de4	test(tests/lean): add test for congruence theorem that uses an argument before simplification Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 13:26:09 -08:00
Leonardo de Moura	180be5c4a2	feat(library/simplifier): improve contextual simplifications Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 13:11:58 -08:00
Leonardo de Moura	5ba2525eab	test(tests/lean): add test disabling contextual simplifications Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 12:57:05 -08:00
Leonardo de Moura	33193e1ab3	feat(library/simplifier): improve contextual simplifications Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 12:54:29 -08:00
Leonardo de Moura	d6692264e8	feat(library/simplifier): contextual simplifications Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-23 12:23:22 -08:00
Leonardo de Moura	1638a7bb02	fix(frontends/lean/pp): compute local shared nodes, and avoid unnecessary let's Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-22 21:44:24 -08:00
Leonardo de Moura	17cce340f6	fix(library/elaborator): in optimization for metavariable free terms The optimization was incorrect if the term indirectly contained a metavariable. It could happen if the term contained a free variable that was assigned in the context to a term containing a metavariable. This commit also adds a new test that exposes the problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-22 18:06:00 -08:00
Leonardo de Moura	8214c7add4	feat(library/elaborator): compensate the lack of eta-reduction (and eta-expanded normal forms) in the kernel normalizer Before this commit, the elaborator was solving constraints of the form ctx \|- (?m x) == (f x) as ?m <- (fun x : A, f x) where A is the domain of f. In our kernel, the terms f and (fun x, f x) are not definitionally equal. So, the solution above is not the only one. Another possible solution is ?m <- f Depending of the circumstances we want ?m <- (fun x : A, f x) OR ?m <- f. For example, when Lean is elaborating the eta-theorem in kernel.lean, the first solution should be used: ?m <- (fun x : A, f x) When we are elaborating the axiom_of_choice theorem, we need to use the second one: ?m <- f Of course, we can always provide the parameters explicitly and bypass the elaborator. However, this goes against the idea that the elaborator can do mechanical steps for us. This commit addresses this issue by creating a case-split ?m <- (fun x : A, f x) OR ?m <- f Another solution is to implement eta-expanded normal forms in the Kernel. With this change, we were able to cleanup the following "hacks" in kernel.lean: @eps_ax A (nonempty_ex_intro H) P w Hw @axiom_of_choice A B P H where we had to explicitly provided the implicit arguments This commit also improves the imitation step for Pi-terms that are actually arrows. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-22 13:28:54 -08:00
Leonardo de Moura	331b5846c6	test(library/simplifier): add test for the single_pass option in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-21 13:47:54 -08:00
Leonardo de Moura	ead54bbf57	feat(library/simplifier): enforce max_steps option Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-21 12:12:17 -08:00
Leonardo de Moura	1ccfac5873	feat(library/simplifier): conditional rewriting Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 21:15:46 -08:00
Leonardo de Moura	1ef75a9ba6	test(tests/lua): add test/example that demonstrates how to collect statistics of used theorems Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 18:04:22 -08:00
Leonardo de Moura	6bcd8e3ee5	fix(library/expr_lt): use expression depth instead of size to obtain a monotonic total order on terms It is not incorrect to use size, but it can easily overflow due to sharing. The following script demonstrates the problem: local f = Const("f") local a = Const("a") function mk_shared(d) if d == 0 then return a else local c = mk_shared(d-1) return f(c, c) end end print(mk_shared(33):size()) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 17:40:49 -08:00
Leonardo de Moura	cd19d4da01	feat(library/simplifier): memoize intermediate results Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 17:03:44 -08:00
Leonardo de Moura	97ead50a3e	feat(builtin/Nat): flip orientation of associativity axioms for + and * Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 15:38:00 -08:00
Leonardo de Moura	d1bd56b3d3	fix(tests/lean): adjust test to reflect recent changes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 14:47:03 -08:00
Leonardo de Moura	ad219d43d9	refactor(*): semantic attachment parsing and simplification Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 14:44:45 -08:00
Leonardo de Moura	ac9f8f340d	feat(kernel/expr): add efficient get_size() function for expressions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 12:28:37 -08:00
Leonardo de Moura	5224df56a3	test(tests/lean): add example showing how to 'sort' argumentes of AC operators using the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 08:36:48 -08:00
Leonardo de Moura	913d893204	feat(library/simplifier): add support for 'permutation' rewrite rules Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-20 08:29:31 -08:00
Leonardo de Moura	69d7ee316f	feat(library/simplifier): improve simplification by evaluation Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 23:26:34 -08:00
Leonardo de Moura	bcede6925f	fix(tests/lean): add expected result file Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 16:31:35 -08:00
Leonardo de Moura	19f3c281c3	test(tests/lean): matrix multiplication example Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 16:29:32 -08:00
Leonardo de Moura	999984e701	fix(tests/lean): remove unnecessary theorems Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 12:55:33 -08:00
Leonardo de Moura	cc11b9e125	test(tests/lean): rewriting proof example Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 12:53:21 -08:00
Leonardo de Moura	d322f63113	feat(frontends/lea): add commands for creating and managing rewrite rule sets Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 12:03:59 -08:00
Leonardo de Moura	bbf6e6a256	feat(builtin/kernel): create default rule set in the kernel, and adjust unit tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 11:24:20 -08:00
Leonardo de Moura	7492fd5a2c	feat(library/simplifier): add support for simplification by evaluation Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 10:34:55 -08:00
Leonardo de Moura	11719713ec	feat(library/hop_match): optionally unfold constants when performing higher order matching Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 10:32:06 -08:00
Leonardo de Moura	39c3b17eb7	feat(library/simplifier): add support for Eta-reduction in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 00:40:35 -08:00
Leonardo de Moura	ed009f4c88	feat(kernel/simplifier): add support for Beta-reduction in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-19 00:40:20 -08:00
Leonardo de Moura	7a3aab60c6	chore(builtin/kernel): remove \bowtie as notation for transitivity Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-18 21:11:12 -08:00
Leonardo de Moura	32c5bc25e3	refactor(library/simplifier): cleanup rewrite_rule_set, and use it in the simplifier Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-18 20:52:33 -08:00
Leonardo de Moura	feea96e84d	feat(library/simplifier): add rewrite_rule_set extension for managing rewrite rules in an environment Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-18 15:43:24 -08:00
Leonardo de Moura	40b7ed13c2	fix(tests/lean): adjust tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-17 19:27:32 -08:00
Leonardo de Moura	fc4c6454a7	chore(tests/lean): adjust tests to reflect recent changes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-17 14:36:55 -08:00
Leonardo de Moura	a43020b31b	refactor(kernel): remove heterogeneous equality Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-16 17:39:12 -08:00
Leonardo de Moura	5453a8f2f1	test(tests/lua): hop_match experiment Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-16 00:15:31 -08:00
Leonardo de Moura	3238c7e2a0	feat(library/simplifier): add is_permutation_ceq predicate Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 19:53:52 -08:00
Leonardo de Moura	2368c936d3	test(tests/lua): exercise fields method for semantic attachments Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 17:24:18 -08:00
Leonardo de Moura	57e58c598c	fix(tests/lean): adjust tests to reflect recent changes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 16:35:33 -08:00
Leonardo de Moura	c73398a0b8	refactor(library/simplifier): relax rule for conditional equalities The idea is to support conditional equations where the left-hand-side does not contain all theorem arguments, but the missing arguments can be inferred using type inference. For example, we will be able to have the eta theorem as rewrite rule: theorem eta {A : TypeU} {B : A → TypeU} (f : ∀ x : A, B x) : (λ x : A, f x) = f := funext (λ x : A, refl (f x)) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 16:06:00 -08:00
Leonardo de Moura	3daac17ea8	feat(library/simplifier): convert disequalities (a ≠ b) into equations '(a = b) = false' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 15:30:16 -08:00
Leonardo de Moura	f67b5c4d00	test(tests/lua): more to_ceqs tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 13:50:35 -08:00
Leonardo de Moura	c651d3ea2d	feat(library/simplifier): filter out propositions that cannot be used as conditional equations Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 12:06:27 -08:00
Leonardo de Moura	94fa987814	fix(kernel/type_checker): is_proposition method was still assuming that a Pi never has type Bool The method is_proposition was using an optimization that became incorrect after we identified Pi and forall. It was assuming that any Pi expression is not a proposition. This is not true anymore. Now, (Pi x : A, B) is a proposition if B is a proposition. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 11:02:52 -08:00
Leonardo de Moura	91e1f9fc02	fix(tests/lean): adjust test to reflect recent changes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 10:20:35 -08:00
Leonardo de Moura	3ab2d2a441	fix(frontends/lean/parser): memory leak due to g++ bug g++ implementation of std::initializer_list has bug. http://gcc.gnu.org/ml/gcc-bugs/2013-06/msg00095.html This commit memory leaks triggered by this bug. It also adds minimal tests to expose three different instances of the problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 10:15:04 -08:00
Leonardo de Moura	97d9765992	fix(tests/lua/threads): increase timeout to make sure it passes the test on slow machines Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-15 08:46:14 -08:00
Leonardo de Moura	c8e1ec87d2	feat(library/simplifier): add to_ceqs function that converts a theorem into a sequence of conditional equations Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-14 18:30:19 -08:00
Leonardo de Moura	7c2a4211a8	feat(kernel): expose imported predicate Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-14 16:41:40 -08:00
Leonardo de Moura	8217a544cc	fix(library/hop_match): bugs in the higher-order matching procedure, add more tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-14 14:37:28 -08:00
Leonardo de Moura	485ca842c9	test(tests/lua): extra tests for Lua hierachical name API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-14 11:38:10 -08:00
Leonardo de Moura	4595c50f7e	fix(library/hop_match): in locally bound variable management Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-13 18:06:23 -08:00
Leonardo de Moura	ccb9faf065	refactor(*): error messages Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-13 16:54:21 -08:00
Leonardo de Moura	55aa4cbfa3	feat(frontends/lean): improve error message for expressions containing unsolved metavariables Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-13 13:21:44 -08:00
Leonardo de Moura	12451e4a35	feat(frontends/lean/pp): display implicit arguments when expression contains metavariables Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-13 12:42:05 -08:00
Leonardo de Moura	84f017f127	chore(tests/lua): use default environment instead of creating a new one Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-12 18:24:04 -08:00
Leonardo de Moura	35bacf95fc	feat(shell): provide the default environment when parsing Lua files Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-12 18:21:14 -08:00
Leonardo de Moura	7f818ecd92	feat(library): match procedure for higher-order patterns Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-12 17:45:24 -08:00
Leonardo de Moura	b85b45b40f	test(tests/lean): When and Cond tactical tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 20:43:39 -08:00
Leonardo de Moura	65bdb9c7e0	fix(frontends/lean): unprotected call to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 19:56:20 -08:00
Leonardo de Moura	411f14415d	feat(builtin): automatically generate Lean/C++ interface for builtin theories Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 18:09:53 -08:00
Leonardo de Moura	a339a53f50	feat(util/options): 'verbose' as a system option, add -q (quiet) option Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 15:31:58 -08:00
Leonardo de Moura	2179e57db3	refactor(builtin): move if_then_else to its own module Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 14:08:39 -08:00
Leonardo de Moura	52e11dbbee	test(tests/lean): 'using' command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 12:21:14 -08:00
Leonardo de Moura	fdeb457a81	feat(kernel/pos_info_provider): add support for file names in pos_info_provider The idea is to include the file name when displaying justification objects. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 12:19:30 -08:00
Leonardo de Moura	84e211b81b	fix(frontends/lean): missing ':' in error messages Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 11:19:58 -08:00
Leonardo de Moura	f7c7dd4ed4	feat(frontends/lean): include filename in error messages, use GNU error message style Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 11:01:27 -08:00
Leonardo de Moura	57c0006916	chore(*): cleanup lean builtin symbols, replace :: with _ Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-09 08:33:52 -08:00
Leonardo de Moura	e42b616438	fix(kernel/normalizer): equality between semantic attachments Given a heterogenous equality: a == b The normalizer will only reduce it if a and b are objects of the same kind. Now, 1 == true is not reduced to false anymore. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 19:10:30 -08:00
Leonardo de Moura	a4b3d6d6c8	refactor(builtin/kernel): prove eta using function extensionality, and rename abst and abstpi to funext and allext Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 17:25:14 -08:00
Leonardo de Moura	a6e0dcc96c	fix(builtin/cast): remove dominj axiom, it is not consistent with the new semantics of Pi/forall Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 16:19:11 -08:00
Leonardo de Moura	2b2aa228e3	refactor(builtin/kernel): start with small universes The universe constraint manager is more flexible now. We don't need to start with a huge universe U >= 512. We can start small, and increase it on demand. If module mod1 needs it, it can always add universe U >= 3 Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 12:35:00 -08:00
Leonardo de Moura	abf61be8f6	chore(library/tactic): remove imp_tac, it is not needed anymore Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 00:57:04 -08:00
Leonardo de Moura	048151487e	feat(kernel): use Pi as forall/implication Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-08 00:38:39 -08:00
Leonardo de Moura	d12d0f036f	feat(kernel/environment): universe variables now live in their own namespace Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 15:57:36 -08:00
Leonardo de Moura	d29d23cade	test(tests/lean): alias command error Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 15:29:16 -08:00
Leonardo de Moura	9f4959fb64	test(tests/lean): kernel exception pp method Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 15:19:52 -08:00
Leonardo de Moura	0363faeec8	fix(frontends/lean/scanner): assertion violation, and add more tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 15:12:34 -08:00
Leonardo de Moura	29db6accb8	test(tests/lean): new tests for exercising the environment object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 14:34:21 -08:00
Leonardo de Moura	0a20356a51	fix(kernel/environment): we should not add an universe contraint object to the set of object when an integer overflow occurs Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 13:43:22 -08:00
Leonardo de Moura	17c4cce89c	fix(library/elaborator): remove_detail procedure was keeping a lot of details when typeof_mvar_justification was being used Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 13:24:46 -08:00
Leonardo de Moura	0f1737d62c	fix(frontends/lean): more precise position information for infix operators Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 13:19:26 -08:00
Leonardo de Moura	8f3c97ca98	test(tests/lean): standard induction Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-07 10:18:31 -08:00
Leonardo de Moura	abb9b8af83	fix(frontends/lean): bug in pop::context command, and add new tests for the universe command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-06 17:14:07 -08:00
Leonardo de Moura	5fe8c32da9	feat(kernel): use new universe contraints in the environment, allow new constraints to be added Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-06 16:46:11 -08:00
Leonardo de Moura	8c956280d9	chore(frontends/lean): rename setoption and setopaque commands to set::option and set::opaque Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-06 11:41:03 -08:00
Leonardo de Moura	7222a2d1a9	feat(builtin/kernel): use the same notation for mp, eq::mp and forall::elim Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 21:39:31 -08:00
Leonardo de Moura	935c2a03a3	feat(*): change name conventions for Lean builtin libraries Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 19:21:44 -08:00
Leonardo de Moura	4ba097a141	feat(frontends/lean): use lowercase commands, replace 'endscope' and 'endnamespace' with 'end' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 13:06:36 -08:00
Leonardo de Moura	6569b07b7c	feat(frontends/lean/parser): rename 'show' expression to 'have' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 11:25:58 -08:00
Leonardo de Moura	0b4bdceb10	feat(builtin/macros): rename 'For' macro to 'take' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 11:08:55 -08:00
Leonardo de Moura	9f08156a73	feat(frontends/lean/parser): combine Echo and Show commands into the 'print' command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 11:03:35 -08:00
Leonardo de Moura	ce1213a020	feat(frontends/lean): use '(* ... )' instead of '(* ... **)' for script code blocks Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 10:32:47 -08:00
Leonardo de Moura	028a9bd9bd	feat(frontends/lean/scanner): use Lua style comments in Lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-05 08:53:27 -08:00
Leonardo de Moura	fbe0bccf51	chore(*): name convention, proof construnction functions/macros start with upper-case Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-03 18:11:01 -08:00
Leonardo de Moura	9eb4dc4a81	feat(kernel, library/elaborator, frontends/lean): improve how elaborator_exceptions are displayed in the Lean frontend This commit affects different modules. I used the following approach: 1- I store the metavariable environment at unification_failure_justifications. The idea is to capture the set of instantiated metavariables at the time of failure. 2- I added a remove_detail function. It removes propagation steps from the justification tree object. I also remove the backtracking search space associated with higher-order unificiation. I keep only the search related to case-splits due to coercions and overloads. 3- I use the metavariable environment captured at step 1 when pretty printing the justification of an elaborator_exception. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-03 17:18:23 -08:00
Leonardo de Moura	502d9f47ac	test(tests/lean): new test full of holes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-02 16:31:52 -08:00
Leonardo de Moura	9620b00e24	feat(kernel/metavar): is instantiate_metavars, we are also instantiating assigned metavariables that occur in the local context of unassinged ones. This modification improves the effectiveness of the process_metavar_inst procedure in the Lean elaborator. For example, suppose we have the constraint ctx \|- ?M1[inst:0 ?M2] == a If ?M1 and ?M2 are unassigned, then we have to consider the two possible solutions: ?M1 == a or ?M1 == #0 and ?M2 == a On the other hand, if ?M2 is assigned to b, then we can ignore the second case. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-02 16:08:38 -08:00
Leonardo de Moura	430b75f38f	test(tests/lean): add version of the Nat library full of holes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-02 12:31:13 -08:00
Leonardo de Moura	e714bd7982	feat(frontends/lean): add syntax sugar for applying Subst in calculational proofs Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-02 11:23:55 -08:00
Leonardo de Moura	111949b9be	feat(frontends/lean): calculational proofs Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-02 10:53:14 -08:00
Leonardo de Moura	b2a8f4118d	feat(library/elaborator): process ho-match before normalizing Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 14:46:19 -08:00
Leonardo de Moura	7726ccad28	chore(builtin): rename nat, int and real modules to Nat, Int and Real. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 13:52:25 -08:00
Leonardo de Moura	d633622d90	feat(frontends/lean/parser): namespaces Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 12:28:18 -08:00
Leonardo de Moura	c423198a69	feat(builtin/kernel): add Not.*Elim theorems Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 11:35:21 -08:00
Leonardo de Moura	a8bc9fb4e0	refactor(builtin/kernel): mark exists as opaque after proving key theorems Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 11:00:32 -08:00
Leonardo de Moura	cbd1f98365	fix(library/elaborator): bug at method process_metavar_inst, add new test that exposed the bug Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2014-01-01 03:02:41 -08:00
Leonardo de Moura	cd3bbb1ebf	fix(kernel/builtin): enforcing design decision: semantic attachments are NOT simplifiers, they should do only evaluation Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-31 10:14:17 -08:00
Leonardo de Moura	390a78a8d2	chore(frontends/lean/parser): remove 'Skipped' message Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 15:35:12 -08:00
Leonardo de Moura	08718e33dc	refactor(builtin): only load the kernel and natural numbers by default Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 13:35:37 -08:00
Leonardo de Moura	ecd62a1783	refactor(builtin/basic): rename basic.lean to kernel.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 11:46:03 -08:00
Leonardo de Moura	4401b390fe	refactor(library/arith): do not load specialfn by default Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 11:25:43 -08:00
Leonardo de Moura	46a8300a2d	refactor(library/arith): move real and special function declarations to .lean files Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 11:02:22 -08:00
Leonardo de Moura	c3bc6afb12	refactor(library/arith): move int and nat declarations to .lean files. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-30 10:32:14 -08:00
Leonardo de Moura	15621610e9	refactor(library/arith): replace Nat, Int, Real with simple variable decls instead of semantic attachments This commit also fixes bugs in the Alias command. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-29 17:04:36 -08:00
Leonardo de Moura	a1a5fb101d	feat(frontends/lean): add Alias command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-29 16:25:45 -08:00
Leonardo de Moura	dfe46b9d25	refactor(kernel/builtin): move definition and axioms to basic.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-29 14:01:30 -08:00
Leonardo de Moura	f8b82d854e	feat(builtin/basic): add TypeM alias Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-29 13:03:32 -08:00
Leonardo de Moura	411ebbc3c1	refactor(library/basic_thms): move the proof of all basic theorems to a .Lean file This commit also adds several new theorems that are useful for implementing the simplifier. TODO: perhaps we should remove the declarations at basic_thms.h? Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-29 03:04:49 -08:00
Leonardo de Moura	41c1010043	feat(frontends/lean/parser): make Import command use binary Lean files Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-28 19:20:04 -08:00
Leonardo de Moura	1fd81dd3a1	feat(frontends/lean/parser): disable verbose messages when importing files Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-28 12:24:13 -08:00
Leonardo de Moura	44a31dd8fb	feat(frontends/lean/parser): improve Import command - The extension does not have to be provided. - It can also import Lua files. - Hierachical names can be used instead of strings. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-28 12:05:01 -08:00
Leonardo de Moura	8e86d6578c	fix(tests/lean): adjust tests to reflect modifications in the pp Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-27 18:38:45 -08:00
Leonardo de Moura	3f0279b88c	refactor(frontends/lua): replace lean.lua.h with util.lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 19:49:26 -08:00
Leonardo de Moura	40eca048e0	feat(extra): replace parse_lean_tpl with improved parse_template, that is based on macros Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 19:28:02 -08:00
Leonardo de Moura	275f022d79	fix(tests/lean): ignore lines containing 'executing external script' in test scripts, these lines contain references to the path where Lean was built Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 18:41:01 -08:00
Leonardo de Moura	f1b97b18b4	refactor(frontends/lean/parser): tactic macros, and tactic Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 15:54:53 -08:00
Leonardo de Moura	ef18cc4a92	fix(frontends/lean/parser): add existing command macros when creating parser object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 13:38:14 -08:00
Leonardo de Moura	8e4560a866	feat(frontends/lean/parser): protect imported modules from Lua definitions and macros in the file importing the module Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 13:21:36 -08:00
Leonardo de Moura	ba02132a90	feat(frontends/lean/parser): add command macros The idea is to allow users to define their own commands using Lua. The builtin command Find is now written in Lua. This commit also fixes a bug in the get_formatter() Lua API. It also adds String arguments to macros. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 13:00:28 -08:00
Leonardo de Moura	480781d13e	feat(frontends/lean/parser): provide environment as an argument to macros, allow macros to parse tactics Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-26 11:15:45 -08:00
Leonardo de Moura	3673f2ac1d	feat(frontends/lean/parser): add Find command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-25 18:31:52 -08:00
Leonardo de Moura	a3dde29f3c	feat(frontends/lua/parser): allow users to specify the precedence of macros Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-25 12:27:56 -08:00
Leonardo de Moura	88235d2922	feat(library/tactic/apply_tactic): try other solutions produced by the elaborator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-25 11:51:27 -08:00
Leonardo de Moura	8e45064f25	feat(library/tactic/apply_tactic): improved parametric apply_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-24 22:40:34 -08:00
Leonardo de Moura	c87e965f86	fix(tests/lean/tactic14.lean): typo Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-24 21:36:49 -08:00
Leonardo de Moura	cb95b14332	feat(library/tactic/apply_tactic): improve apply_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-24 14:23:06 -08:00
Leonardo de Moura	879ab6924a	tests(test/lean): remove 'Importing...' message, the tests using the Import command fail when running on a different machine Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-24 12:26:53 -08:00
Leonardo de Moura	00e89190c2	refactor(library/cast): use .lean file instead of .cpp file to define casting library Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-23 22:04:19 -08:00
Leonardo de Moura	8c8cefcb0c	feat(frontends/lean/parser): compact definitions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-23 21:24:50 -08:00
Leonardo de Moura	5043cc75f6	fix(frontends/lean/parser): allow parenthesis in level expressions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-23 13:31:55 -08:00
Leonardo de Moura	2c30b87f30	test(tests/lean): ExistsElim test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-23 12:57:25 -08:00
Leonardo de Moura	baf99779dc	feat(frontends/lean/frontend_elaborator): use is_convertible to minimize number of coercions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-22 17:57:51 -08:00
Leonardo de Moura	65f7217935	fix(tests/lean/norm_tac): display implicit parameters to make sure output can be parsed Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-22 17:11:36 -08:00
Leonardo de Moura	3e32d9bef2	feat(library/tactic): add support for Pi's at to_proof_state Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-22 16:40:55 -08:00
Leonardo de Moura	104bd990e1	feat(library/tactic): add normalize_tac, eval_tac and trivial_tac Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-22 14:10:42 -08:00
Leonardo de Moura	4229e498d2	refactor(kernel/type_checker): combine type_checker and type_inferer into a single class, and avoid code duplication Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-22 11:51:38 -08:00
Leonardo de Moura	9128a437b8	refactor(library/cast): replace cast semantic attachment with axioms, add heterogeneous symmetry axiom Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 18:23:37 -08:00
Leonardo de Moura	df58eb132e	feat(frontends/lean): simplify explicit version names Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 17:05:25 -08:00
Leonardo de Moura	36b2ec9abb	fix(library/cast): bugs in Cast semantic attachment TODO: revise cast semantic attachment. It should be axioms instead of semantic attachments. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 16:16:54 -08:00
Leonardo de Moura	aebff0b4d3	fix(library/type_inferer): bug in get_range method Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 14:55:07 -08:00
Leonardo de Moura	55d46b2f88	test(tests/lean): add new normalizer/elaborator test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 06:43:25 -08:00
Leonardo de Moura	9444c1f47f	test(tests/lean): add example that cannot be elaborated Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 04:19:53 -08:00
Leonardo de Moura	fddcdb8f40	fix(library/elaborator): bug in process_lower Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 04:13:14 -08:00
Leonardo de Moura	66f106da8c	test(tests/lean): new error msg test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-21 03:20:04 -08:00
Leonardo de Moura	ce84fe5d33	feat(frontends/lean): improve error messages when elaborator cannot instantiate all metavariables Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-20 22:00:50 -08:00
Leonardo de Moura	bb81311e0a	feat(frontends/lean/parser): include proof state in exception for tactic failure Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-20 17:15:12 -08:00
Leonardo de Moura	7772c16033	refactor(kernel): add unfold_opaque flag to normalizer, modify how type checker uses the opaque flag, remove hidden_defs, and mark most builtin definitions as opaque After this commit, in the type checker, when checking convertability, we first compute a normal form without expanding opaque terms. If the terms are convertible, then we are done, and saved a lot of time by not expanding unnecessary definitions. If they are not, instead of throwing an error, we try again expanding the opaque terms. This seems to be the best of both worlds. The opaque flag is a hint for the type checker, but it would never prevent us from type checking a valid term. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-20 12:47:47 -08:00
Leonardo de Moura	812c1a2960	feat(library/elaborator): only expand definitions that are not marked as hidden The elaborator produces better proof terms. This is particularly important when we have to prove the remaining holes using tactics. For example, in one of the tests, the elaborator was producing the sub-expression (λ x : N, if ((λ x::1 : N, if (P a x x::1) ⊥ ⊤) == (λ x : N, ⊤)) ⊥ ⊤) After, this commit it produces (λ x : N, ¬ ∀ x::1 : N, ¬ P a x x::1) The expressions above are definitionally equal, but the second is easier to work with. Question: do we really need hidden definitions? Perhaps, we can use only the opaque flag. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-20 02:16:49 -08:00
Leonardo de Moura	c77464703f	feat(frontends/lean): macro definition using Lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 19:08:10 -08:00
Leonardo de Moura	b08c606696	fix(library/io_state): bug in the io_state Lua bindings This commit also includes a new test that exposes the problem. The options in the io_state object were being lost. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 16:39:42 -08:00
Leonardo de Moura	2648f41eaa	test(tests/lean): add new test script that checks if Lean can parse the output produced by its pretty printer Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 16:16:56 -08:00
Leonardo de Moura	d9e692f506	feat(frontends/lean): improve coercion manangement Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 15:45:46 -08:00
Leonardo de Moura	f43db96e1f	fix(frontends/lean/pp): pretty printer for Type Add parenthesis around Type when it has a universe. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 15:24:45 -08:00
Leonardo de Moura	ae01d3818d	fix(frontends/lean/parser): parse_type method The parser had a nasty ambiguity. For example, f Type 1 had two possible interpretations (f (Type) (1)) or (f (Type 1)) To fix this issue, whenever we want to specify a particular universe, we have to precede 'Type' with a parenthesis. Examples: (Type 1) (Type U) (Type M + 1) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 15:24:34 -08:00
Leonardo de Moura	46627289b8	fix(kernel/expr): avoid '_' as a binder name, we use '_' as a placeholder in the Lean frontend Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 14:47:53 -08:00
Leonardo de Moura	d3d24696f4	feat(frontends/lean): hide builtin object in the 'Show Environment' command The user can still display builtin objects by using Show Environment all Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 14:00:58 -08:00
Leonardo de Moura	ad3f771b1d	feat(frontends/lean): hide 'explicit' version of objects with implicit arguments Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 13:12:39 -08:00
Leonardo de Moura	bff5a6bfb2	fix(frontends/lean/pp): make sure pp and parser are using the same precedences Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-19 12:46:14 -08:00
Leonardo de Moura	dd72269b13	feat(frontends/lean): rename command Set to SetOption It is not nice to have Set as a reserved keyword. See example examples/lean/set.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-18 21:18:48 -08:00
Leonardo de Moura	42cb5d1d3c	fix(tests/lean): typo Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-18 20:11:49 -08:00
Leonardo de Moura	79fa6e4940	feat(frontends/lean): Scopes in the default Lean frontend Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-18 17:40:21 -08:00
Leonardo de Moura	2aaa9a5273	feat(frontends/lean/parser): change function application precedence Now, we can write Pi (x y : A), R x y -> R y x instead of Pi (x y : A), (R x y) -> (R y x) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-18 12:44:15 -08:00
Leonardo de Moura	10f28c7bec	feat(kernel/replace_fn): non-recursive replace_fn Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-17 16:35:39 -08:00
Leonardo de Moura	c53233ea26	fix(kernel/normalizer): avoid svalue hack, use 'semantic attachments' for implementing closures, include context in the closure Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-17 14:33:42 -08:00
Leonardo de Moura	09b51a0fb7	fix(library/elaborator): missing condition The elaborator was missing solutions because of the missing condition at is_simple_ho_match. This commit also adds a new test that exposes the problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-16 17:13:36 -08:00
Leonardo de Moura	5b29fd8d93	test(tests/lean): add ExistsElim test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-16 15:43:09 -08:00
Leonardo de Moura	8f5c2b7d9f	feat(library/basic_thms): add Refute theorem Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-16 12:03:31 -08:00
Leonardo de Moura	8f9405c8b3	fix(library/elaborator): tag meta_app constraints of the form 'ctx \|- m?[inst:i v] t1 =:= t2' as expensive This commits also adds a new unit test that demonstrates non-termination due to this kind of constraint. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-16 09:39:02 -08:00
Leonardo de Moura	2972fb9d8c	test(tests/lean): new elaborator tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-15 22:00:26 -08:00
Leonardo de Moura	61bd27ff06	fix(library/elaborator): bug in simple_ho_match Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-15 21:48:55 -08:00
Leonardo de Moura	19ad39159e	feat(library/basic_thms): add ForallIntro theorem Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-15 17:35:31 -08:00
Leonardo de Moura	82dfb553d5	feat(library/basic_thms): add ExistsIntro theorem Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-15 16:26:23 -08:00
Leonardo de Moura	993bea8206	refactor(library/elaborator): improve elaborator state data-structure The "quota" hack used before this commit was inefficient, and too hackish. This commit uses two lists of constraints: active and delayed. The delayed constraints are only processed when there are no active constraints. We use a simple index to quickly find which delayed constraints have assigned metavariables. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> checkpoint Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-14 23:27:08 -08:00
Leonardo de Moura	3d30664611	feat(kernel/type_checker): provide the metavar_env to instantiate, it will minimize the number of local_entries needed Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-14 15:13:56 -08:00
Leonardo de Moura	4357c9196e	feat(kernel/metavar): make sure that a metavariable 'm' can only be assigned to a term that contains free variables available in the context associated with 'm' This commit also simplifies the method check_pi in the type_checker and type_inferer. It also fixes process_meta_app in the elaborator. The problem was in the method process_meta_app and process_meta_inst. They were processing convertability constrains as equality constraints. For example, process_meta_app would handle ctx \|- Type << ?f b as ctx \|- Type =:= ?f b This is not correct because a ?f that returns (Type U) for b satisfies the first but not the second. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-14 12:25:00 -08:00
Leonardo de Moura	bbaa83e16a	feat(frontends/lean): implement relaxed operator compatibility in the parser Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-10 15:42:43 -08:00
Leonardo de Moura	6b1b6c7bd1	feat(tests/lean): include standard error in the expected output Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-10 12:52:57 -08:00
Leonardo de Moura	90f88acf42	feat(frontends/lean): relax compatible_denotation predicate Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-10 12:42:29 -08:00
Leonardo de Moura	abe2cf2fb5	feat(frontends/lean): simplify how implicit parameters are marked Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-10 12:11:04 -08:00
Leonardo de Moura	78ec4b152b	feat(frontends/lean): relax restricitions on parsing applications of functions containing implicit arguments Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-10 09:48:24 -08:00
Leonardo de Moura	0cd8e3e76b	feat(split-stack): add support for split-stacks (no more stackoverflows) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-09 22:30:54 -08:00
Leonardo de Moura	0eaa98221b	fix(shell/lean): Lua repl missing, incorrect exit code in interactive mode, missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-09 12:25:19 -08:00
Leonardo de Moura	3ea09daf44	fix(frontends/lean/frontend): is_coercion for environment objects that have parents Bug was exposed by tests/lua/coercion_bug1.lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-08 17:47:00 -08:00
Leonardo de Moura	2a80807fef	refactor(frontends/lean/pp): replace weak_ref with a strong reference, add new function (lean_formatter) for creating a Lean object formatter in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-08 17:33:18 -08:00
Leonardo de Moura	68c2e5cc7d	fix(frontends/lean/parser): reachable code The new test nbug1.lean exposes the problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-08 15:22:21 -08:00
Leonardo de Moura	04b67f8b14	refactor(kernel/object): remove 'null' object, and operator bool for kernel objects Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-08 14:37:38 -08:00
Leonardo de Moura	3e1fd06903	refactor(kernel/expr): remove 'null' expression, and operator bool for expression After this commit, a value of type 'expr' cannot be a reference to nullptr. This commit also fixes several bugs due to the use of 'null' expressions. TODO: do the same for kernel objects, sexprs, etc. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-07 23:21:10 -08:00
Leonardo de Moura	1ff6013594	fix(frontends/lean/frontend_elaborator): must elaborate type attached to placeholder, it may also contain holes The test tactic14.lean exposes the problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-07 15:37:59 -08:00
Leonardo de Moura	e2999d3ff6	feat(*): add component name to check_stack and check_system I also reduced the stack size to 8 Mb in the tests at tests/lean and tests/lean/slow. The idea is to simulate stackoverflow conditions. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-07 15:11:55 -08:00
Leonardo de Moura	33b72f1dd0	feat(frontends/lean/parser): apply type inference elaborator to fill remaining metavariables/holes (these are holes produced by tactics such as apply_tac) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-07 13:09:39 -08:00
Leonardo de Moura	a75d05fdb4	fix(tests/lean/interactive): test driver (to avoid discrepancy between Win and Linux version) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 17:03:12 -08:00
Leonardo de Moura	daadff548e	fix(tests/lean): update expected result to reflect recent changes Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 16:31:13 -08:00
Leonardo de Moura	015bff8283	fix(library/tactic/goal): to_goal way of handling context_entries of the form (name, domain, body) where domain is null, and body is a proof term This commit fixes a problem exposed by t13.lean. It has a theorem of the form: Theorem T1 (A B : Bool) : A /\ B -> B /\ A := fun assumption : A /\ B, let lemma1 := (show A by auto), lemma2 := (show B by auto) in (show B /\ A by auto) When to_goal creates a goal for the metavariable associated with (show B /\ A by auto) it receives a context and proposition of the form [ A : Bool, B : Bool, assumption : A /\ B, lemma1 := Conjunct1 assumption, lemma2 := Conjunct2 assumption ] \|- B /\ A The context_entries "lemma1 := Conjunct1 assumption" and "lemma2 := Conjunct2 assumption" do not have a domain (aka type). Before this commit, to_goal would simply replace and references to "lemma1" and "lemma2" in "B /\ A" with their definitions. Note that, "B /\ A" does not contain references to "lemma1" and "lemma2". Then, the following goal is created A : Bool, B : Bool, assumption : A /\ B \|- B /\ A That is, the lemmas are not available when solving B /\ A. Thus, the tactic auto produced the following (weird) proof for T1, where the lemmas are computed but not used. Theorem T1 (A B : Bool) (assumption : A ∧ B) : B ∧ A := let lemma1 := Conjunct1 assumption, lemma2 := Conjunct2 assumption in Conj (Conjunct2 assumption) (Conjunct1 assumption) This commit fixed that. It computes the types of "Conjunct1 assumption" and "Conjunct2 assumption", and creates the goal A : Bool, B : Bool, assumption : A /\ B, lemma1 : A, lemma2 : B \|- B /\ A After this commit, the proof for theorem T1 is Theorem T1 (A B : Bool) (assumption : A ∧ B) : B ∧ A := let lemma1 := Conjunct1 assumption, lemma2 := Conjunct2 assumption in Conj lemma2 lemma1 as expected. Finally, this example suggests that the encoding Theorem T1 (A B : Bool) : A /\ B -> B /\ A := fun assumption : A /\ B, let lemma1 : A := (by auto), lemma2 : B := (by auto) in (show B /\ A by auto) is more efficient than Theorem T1 (A B : Bool) : A /\ B -> B /\ A := fun assumption : A /\ B, let lemma1 := (show A by auto), lemma2 := (show B by auto) in (show B /\ A by auto) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 16:14:25 -08:00
Leonardo de Moura	0390f3c39b	feat(library/tactic/boolean_tactics): avoid unnecessary Let expression in proof terms Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 15:01:54 -08:00
Leonardo de Moura	1df9d18891	feat(frontends/lean): allow 'tactic hints' to be associated with 'holes' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 14:49:39 -08:00
Leonardo de Moura	2ddcc32c1d	fix(frontends/lean/notation): change the precedence of '->' It should match the precedence of the implication '=>'. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 13:23:24 -08:00
Leonardo de Moura	fa03ae2a26	fix(library/elaborator): strength elaborator procedure for handling equality and convertability constraints This commit improves the condition for showing that an equality(and convertability) constraint cannot be solved. A nice consequence is that Lean produces nicer error messages. For example, the error message for unit test elab1.lean is more informative. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 13:04:34 -08:00
Leonardo de Moura	d46cf5fdd5	fix(frontends/lean/parser): display failed state in noninteractive mode, stop processing tactic commands when a Lean command is found Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-06 05:13:29 -08:00
Leonardo de Moura	13f9454fe1	feat(library/tactic/proof_state): add option tactic::proof_state::goal_names Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 21:18:22 -08:00
Leonardo de Moura	e6fb6f7d1e	feat(frontends/lean/parser): add assumption command, and allow Lean expressions (proof terms) to be used with apply tactic command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 20:08:51 -08:00
Leonardo de Moura	0c059a9917	feat(library/tactic): use _tac suffix instead of _tactic like Isabelle Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 20:06:32 -08:00
Leonardo de Moura	1b176204b4	feat(frontends/lean/parser): allow the user to use a theorem/axiom name as an argument for the apply tactic command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 19:03:12 -08:00
Leonardo de Moura	e1d44eec6b	fix(frontends/lean/parser): bug in parse_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 17:40:55 -08:00
Leonardo de Moura	a564795fe6	fix(frontends/lean/parser): remove unnecessary '#' after error Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 17:27:08 -08:00
Leonardo de Moura	74a8b5f2f4	test(tests/lean/interactive): add back command test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 17:19:53 -08:00
Leonardo de Moura	e069ce640b	feat(frontends/lean/parser): add tactic abort command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 17:15:19 -08:00
Leonardo de Moura	34654ad06b	feat(tests/lean/interactive): add interactive mode test script Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 16:56:20 -08:00
Leonardo de Moura	e3848d43a2	feat(frontends/lean): improve tactic command parsing in interactive mode Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 16:28:08 -08:00
Leonardo de Moura	fa98c1358f	feat(library/tactic): add disj_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 04:49:06 -08:00
Leonardo de Moura	029ef57abd	feat(library/tactic): add apply_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-05 03:22:12 -08:00
Leonardo de Moura	e60e20a11d	feat(frontends/lean): add Exit command Remark: on Windows, Ctrl-D does not seem to work. So, this commit also changes the Lean startup message. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-04 10:40:22 -08:00
Leonardo de Moura	8e53643b61	feat(library/fo_unify): first order unification Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-03 12:21:21 -08:00
Leonardo de Moura	dd62af1641	feat(frontends/parser): simplified theorem definition using tactical proof When using tactics for proving theorems, a common pattern is Theorem T : <proposition> := _. apply <tactic>. ... done. This commit allows the user to write the simplified form: Theorem T : <proposition>. apply <tactic>. ... done. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-02 08:20:18 -08:00
Leonardo de Moura	25978118df	feat(library/tactic): add beta-reduction tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-02 08:10:51 -08:00
Leonardo de Moura	1ec8f9d536	feat(kernel): add abstraction (aka function extensionality) axiom Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 13:57:14 -08:00
Leonardo de Moura	09f98ecddc	feat(library/tactic): add unfold_tactic() that unfolds every non-hidden definition Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 10:41:05 -08:00
Leonardo de Moura	70e06f8e86	feat(library/hidden_defs): hidden definitions are just hints for tactics and solvers Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 10:27:27 -08:00
Leonardo de Moura	ca53a5a1cc	feat(library/tactic): add unfold tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 08:51:56 -08:00
Leonardo de Moura	f91c4901e8	feat(library/tactic): add absurd_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 07:55:00 -08:00
Leonardo de Moura	bf2adb20e7	feat(library/tactic): add disj_hyp_tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-12-01 07:55:00 -08:00
Leonardo de Moura	1a221d8bbe	feat(library/tactic): add focus tactical Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-30 11:28:38 -08:00
Leonardo de Moura	98897b467d	feat(frontends/lean/parser): add support for Lua expression code blocks In expression code blocks, we do not have to write a "return". After this commit, the argument of an apply command is a Lua expression instead of a Lua block of code. That is, we can now write apply ( REPEAT(ORELSE(imp_tactic, conj_tactic, conj_hyp_tactic, assumption_tactic)) ) instead of apply ( return REPEAT(ORELSE(imp_tactic, conj_tactic, conj_hyp_tactic, assumption_tactic)) ) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-29 10:21:24 -08:00
Leonardo de Moura	f9874cd675	feat(library/tactic): add to_tactic_ext, it allows functions that return tactics to be used where a tactic is expected For example, after this commit, we can write simple_tac = REPEAT(ORELSE(imp_tactic, conj_tactic)) .. assumption_tactic instead of simple_tac = REPEAT(ORELSE(imp_tactic(), conj_tactic())) .. assumption_tactic() Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-29 09:40:21 -08:00
Leonardo de Moura	20a36e98ec	feat(library/elaborator): modify how elaborator handles constraints of the form ?M << P and P << ?M, where P is a proposition. Before this commit, the elaborator would only assign ?M <- P, if P was normalized. This is bad since normalization may "destroy" the structure of P. For example, consider the constraint [a : Bool; b : Bool; c : Bool] ⊢ ?M::1 ≺ implies a (implies b (and a b)) Before this, ?M::1 will not be assigned to the "implies-term" because the "implies-term" is not normalized yet. So, the elaborator would continue to process the constraint, and convert it into: [a : Bool; b : Bool; c : Bool] ⊢ ?M::1 ≺ if Bool a (if Bool b (if Bool (if Bool a (if Bool b false true) true) false true) true) true Now, ?M::1 is assigned to the term if Bool a (if Bool b (if Bool (if Bool a (if Bool b false true) true) false true) true) true This is bad, since the original structure was lost. This commit also contains an example that only works after the commit is applied. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-29 09:15:01 -08:00
Leonardo de Moura	b3f87e2e4f	feat(library/tactic): make THEN, ORELSE, APPEND, PAR and INTERLEAVE nary combinators Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 22:11:07 -08:00
Leonardo de Moura	7ed78815e0	fix(tests/lua): incorrect assertion The assertion got violated after a bug was fixed in the to_goal procedure. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 21:53:57 -08:00
Leonardo de Moura	5dfb3b8b56	feat(frontends/lean/parse): allow script-code blocks to be used in the apply command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 21:48:30 -08:00
Leonardo de Moura	c6b05bcfcb	feat(library/tactic): modify assumption_tactic, it should fail if not applicable, and TRY tactical Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 18:23:38 -08:00
Leonardo de Moura	e3f3ec5553	feat(library/tactic): expose conj_tactic, imp_tactic, conj_hyp_tactic in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 18:17:15 -08:00
Leonardo de Moura	662fb71d59	chore(tests/lua/threads): fix type in file name Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 13:12:54 -08:00
Leonardo de Moura	ce674d2d43	feat(library/tactic): execute Lua tactics using coroutines This is very important when several Lua tactics are implemented in the same Lua State object. In this case, even if we use the par combinator, a Lua tactic will block the other Lua tactics running in the same Lua State object. With this commit, a Lua tactic can use yield to allow other tactics in the same State object to execute. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 13:09:33 -08:00
Leonardo de Moura	09bc7ddf91	feat(library/tactic): add support for migratic tactic framework object between Lua states Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-28 08:03:05 -08:00
Leonardo de Moura	3dc7a856f0	refactor(library/tactic): use unprotect/protect idiom for callbacks in the tactic API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-27 18:11:46 -08:00
Leonardo de Moura	b4a8418d38	feat(library/tactic): expose tactics in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-27 17:47:29 -08:00
Leonardo de Moura	0934d7b2f4	fix(frontends/lua): make sure Lua 'sleep' function support interruption Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-27 13:25:06 -08:00
Leonardo de Moura	d87ad9eb7e	refactor(util/lua): propagate C++ Lean exceptions in Lua The following call sequence is possible: C++ -> Lua -> C++ -> Lua -> C++ The first block of C++ is the Lean main function. The main function invokes the Lua interpreter. The Lua interpreter invokes a C++ Lean API. Then the Lean API invokes a callback implemented in Lua. The Lua callback invokes another Lean API. Now, suppose the Lean API throws an exception. We want the C++ exception to propagate over the mixed C++/Lua call stack. We use the clone/rethrow exception idiom to achieve this goal. Before this commit, the C++ exceptions were converted into strings using the method what(), and then they were propagated over the Lua stack using lua_error. A lua_error was then converted into a lua_exception when going back to C++. This solution was very unsatisfactory, since all C++ exceptions were being converted into a lua_exception, and consequently the structure of the exception was being lost. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-27 12:25:29 -08:00
Leonardo de Moura	99a811a586	feat(bindings/lua): expose io_state object in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-26 12:54:47 -08:00
Leonardo de Moura	861be072d8	feat(bindings/lua): add proof_state to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-26 11:34:58 -08:00
Leonardo de Moura	fd3b9e39f6	feat(bindings/lua): add cex_builder to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-26 09:17:57 -08:00
Leonardo de Moura	4d9075bdfd	feat(bindings/lua): add proof_map, assignment and proof_builder to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-26 08:37:37 -08:00
Leonardo de Moura	3ebc099ec5	feat(bindings/lua/options): improve options Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-25 21:05:05 -08:00
Leonardo de Moura	feeb6d9105	feat(bindings/lua): add goal object to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-25 20:51:47 -08:00
Leonardo de Moura	7b8bd97699	feat(lua/expr): add method for extracting semantic attachment data Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-19 19:06:47 -08:00
Leonardo de Moura	a98fdd9be6	refactor(shell): combine lean and leanlua executables in a single executable The main motivation is to allow users to configure/extend Lean using .lua files before loading the actual .lean files. Example: ./lean extension1.lua extension2.lua file.lean Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-19 16:48:21 -08:00
Leonardo de Moura	87775cbc07	chore(build): include incorrect output in the logs Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-18 15:39:55 -08:00
Soonho Kong	20756c382c	test(*): split leantests, leanslowtests, leanluatests, leanluadocs into singletons	2013-11-18 18:27:11 -05:00
Leonardo de Moura	b2d1acd0b7	test(lua/environment): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-18 09:27:46 -08:00
Leonardo de Moura	1315378ebb	test(*): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-18 09:13:34 -08:00
Leonardo de Moura	7976937e4c	test(lua/metavar_env): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 19:18:47 -08:00
Leonardo de Moura	69be5f6c94	feat(kernel/environment): track which modules were already imported Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 18:15:44 -08:00
Leonardo de Moura	5f651d46e6	tests(lua/frontend_lean): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 13:48:29 -08:00
Leonardo de Moura	df94e44806	test(lua/expr): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 11:46:24 -08:00
Leonardo de Moura	e693c2de01	test(lua/name): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 11:25:21 -08:00
Leonardo de Moura	8a13df3ce1	test(lua/type_inferer): add missing tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 11:17:32 -08:00
Leonardo de Moura	f586e58ac3	test(lua/justification): add more tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 11:13:10 -08:00
Leonardo de Moura	d0bac61e74	fix(lua/numerics): bug in bindings, add more tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-17 11:02:44 -08:00
Leonardo de Moura	926ed0a02d	feat(lua): add type_inferer object to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-16 19:18:15 -08:00
Leonardo de Moura	590b14570f	feat(lua): improve error handling in Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-16 18:21:42 -08:00
Leonardo de Moura	390f7eaec8	test(kernel/typechecker): type checker Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-16 15:01:39 -08:00
Leonardo de Moura	9398ea5a59	feat(util/shared_mutex): add support for recursive lock at shared_mutex We need support for recursive locks. The main user of this class is the environment object. This commit adds a test that demonstrates that the shared_lock of the environment object may be recursively requested. Before this fix, the Lean was deadlocking in this example. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-15 22:01:11 -08:00
Leonardo de Moura	209a2d10f7	fix(lua): replace std::mutex with std::recursive_mutex, add test that demonstrates the problem that is being fixed Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-15 21:26:16 -08:00
Leonardo de Moura	8525e8534b	feat(lua): expose parse_expr and parse_commands from frontends/lean in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-15 16:11:26 -08:00
Leonardo de Moura	a74412963a	chore(build): only execute lua multi-threading tests when on cygwin or linux, and using g++ Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-15 09:27:58 -08:00
Leonardo de Moura	5e170ce5fe	chore(tests/lua): move examples that use threads to tests/lua/threads Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-15 09:11:58 -08:00
Leonardo de Moura	b5dcb93550	feat(lua): communication channels for threads Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 21:10:46 -08:00
Leonardo de Moura	3a924a5fb1	perf(lua/name): improve to_name_ext performance Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 18:06:09 -08:00
Leonardo de Moura	45858d54ae	test(frontends/lean): add missing expected output Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 15:51:47 -08:00
Leonardo de Moura	6b30ebab5e	test(lua): use simplified Const creation Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 15:17:00 -08:00
Leonardo de Moura	09bed4786c	feat(lua): add semantic attachments for builtin arithmetical values to Lua API, improve mk_constant Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 15:15:04 -08:00
Leonardo de Moura	abe93dfec0	fix(lua/splay_tree): for_each method was crashing if the map was updated during for_each Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 13:48:23 -08:00
Leonardo de Moura	64cce595a5	feat(lua): add splay_maps to the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 13:35:36 -08:00
Leonardo de Moura	9e445d1917	feat(lua): interrupt and sleep Lua APIs Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 10:04:32 -08:00
Leonardo de Moura	691893258d	feat(kernel/expr): add hash code based on allocation time The new hash code has the property that given expr_cell * c1 and expr_cell * c2, if c1 != c2 then there is a high propbability that c1->hash_alloc() != c2->hash_alloc(). The structural hash code hash() does not have this property because we may have c1 != c2, but c1 and c2 are structurally equal. The new hash code is only compatible with pointer equality. By compatible we mean, if c1 == c2, then c1->hash_alloc() == c2->hash_alloc(). This property is obvious because hash_alloc() does not have side-effects. The test tests/lua/big.lua exposes the problem fixed by this commit. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-14 02:43:11 -08:00
Leonardo de Moura	ae7ea99b56	fix(lua): copy_values and add tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 21:31:27 -08:00
Leonardo de Moura	c759fc93f7	test(lua): object Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 20:59:28 -08:00
Leonardo de Moura	351ef867d2	feat(lua): add abstract, instantiate, has_free_vars, lift/lower free_vars to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 17:02:49 -08:00
Leonardo de Moura	ed3cf8152b	feat(lua): add for_each to expr Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 16:30:59 -08:00
Leonardo de Moura	3dea7ae0d6	test(frontends/lean): example mixing Lean and Lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 16:07:15 -08:00
Leonardo de Moura	1bf6051866	test(lua): expr LUA API test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 15:29:31 -08:00
Leonardo de Moura	9a22702383	feat(lua): make objects() and localobjects() methods return iterators in the environment LUA API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 14:26:01 -08:00
Leonardo de Moura	8c52d47692	chore(lua): rename env() to get_env() Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 13:58:51 -08:00
Leonardo de Moura	a80adae1c3	feat(lua): add fields method to sexpr Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 12:10:24 -08:00
Leonardo de Moura	450128e28b	refactor(lua): cleanup Lua bindings, and add accessor/tester to expr Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-13 11:46:09 -08:00
Leonardo de Moura	be093ecf90	feat(lua): use formatter available in the state object to convert Lean objects into strings in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-12 16:56:30 -08:00
Leonardo de Moura	9a5f86fce6	feat(lua): use ( ... ) instead of {{ ... }} for nested Lua scripts The token }} is a bad delimiter for blocks of Lua script code nested in Lean files. The problem is that the sequence }} occurs very often in Lua code because Lua uses { and } to build tables/lists/arrays. Here is an example of Lua code that contains the sequence }} t = {{1, 2}, {2, 3}, {3, 4}} In Lean, (* ... ) is used to create comments. Thus, (* ... **) code blocks will not affect valid Lean files. It also looks reasonably good. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-12 16:05:49 -08:00
Leonardo de Moura	8190d4fed5	feat(lua): allow Lua scripts to update 'global' options Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-12 15:38:00 -08:00
Leonardo de Moura	b986af09ed	feat(lua): add support for copying closures between Lua states Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-12 12:54:34 -08:00
Leonardo de Moura	2af2a69fc6	feat(lua): expose kernel objects in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-12 09:40:29 -08:00
Leonardo de Moura	d257156b88	fix(lua): memory leaks, we should not use luaL_error because it does not unwind C++ stack Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 21:45:13 -08:00
Leonardo de Moura	a30e02d862	fix(lua): redefine Lua 'print' function, and make sure it is thread safe Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 21:15:21 -08:00
Leonardo de Moura	eb9d0f0552	test(lua): add example showing how to access/update an environment object using multiple threads Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 20:53:23 -08:00
Leonardo de Moura	0af8f17834	feat(lua): allow Booleans to be copied between Lua states Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 20:39:46 -08:00
Leonardo de Moura	2ac594a159	test(lua): add a new example showing how to create nested State objects and threads Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 18:27:09 -08:00
Leonardo de Moura	69b41eae70	feat(lua): add support for multiple execution threads in the Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 16:25:17 -08:00
Leonardo de Moura	95785c7aaa	feat(lua): add State objects, it allows us to create several Lua State objects in a lua script Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 15:05:50 -08:00
Leonardo de Moura	bdc23fba32	test(lua): add tests for expr object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 13:11:31 -08:00
Leonardo de Moura	b227775a07	test(lua): add tests for format object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 12:58:47 -08:00
Leonardo de Moura	c2db18a003	test(lua): add tests for sexpr object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 09:51:07 -08:00
Leonardo de Moura	6c7be28807	test(lua): add tests for options object Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-11 09:42:50 -08:00
Leonardo de Moura	8c140ff86f	feat(lua): allow lua scripts (embedded in Lean files) to access the environment Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-10 11:14:04 -08:00
Leonardo de Moura	3078923ea4	fix(kernel/type_checker): add missing test, and kernel_exception has_no_type_exception Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-10 11:14:04 -08:00
Leonardo de Moura	9d61fcf85b	feat(lua): expose environment objects in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-10 11:14:04 -08:00
Leonardo de Moura	8dd62e76be	feat(lua): add mk_metavar to Lua API Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-10 11:14:04 -08:00
Leonardo de Moura	554defe89d	feat(lua): expose local_context objects in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-09 12:18:46 -08:00
Leonardo de Moura	ad2de3b53c	feat(lua): expose level objects in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-08 17:08:24 -08:00
Leonardo de Moura	5a97f730af	feat(lua): add Type function Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-08 15:52:58 -08:00
Leonardo de Moura	32605d8266	feat(lua): expose level objects in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-08 15:38:00 -08:00
Leonardo de Moura	cc17be1ef1	feat(lua): add is_* predicates Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-08 12:40:28 -08:00
Leonardo de Moura	5c35a9ad0a	feat(lua): add Consts function Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-08 12:09:46 -08:00
Leonardo de Moura	b57ad80d5e	feat(lua): expose basic API for Lean expressions in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-07 21:54:57 -08:00
Leonardo de Moura	9000c7c2fa	feat(lua): expose format objects in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-07 21:54:42 -08:00
Leonardo de Moura	57b9657bf0	feat(lua): add lua_exception for wrapping lua errors, and improve Lua error messages in the Lean frontend Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-07 15:19:26 -08:00
Leonardo de Moura	a9b2be0b9c	feat(frontends/lean): add support for embedded Lua scripts in Lean files Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-07 13:56:04 -08:00
Leonardo de Moura	9c60eed93c	refactor(kernel/metavar): avoid using unique names for default metavariable prefix The problem is that unique names depend on the order compilation units are initialized. The order of initialization is not specified by the C++ standard. Then, different compilers (or even the same compiler) may produce different initialization orders, and consequently the metavariable prefix is going to be different for different builds. This is not a bug, but it makes unit tests to fail since the output produced by different builds is different for the same input file. Avoiding unique name feature in the default metavariable prefix avoids this problem. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-07 10:16:25 -08:00
Leonardo de Moura	76150620c3	test(lua): use assertions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-05 13:21:01 -08:00
Leonardo de Moura	ba3faea586	test(lua): add test driver for Lua binding tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-05 13:11:34 -08:00
Leonardo de Moura	0cc475e581	fix(lua/sexpr): make sexpr bindings robust Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-05 13:03:32 -08:00
Leonardo de Moura	56344c0541	test(lua): add more s-exprs Lua tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-04 21:31:29 -08:00
Leonardo de Moura	f13a97397f	feat(lua): expose s-expressions in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-04 19:58:32 -08:00
Leonardo de Moura	3c475e890d	refactor(lua/options): improve options bindings for Lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-04 18:46:58 -08:00
Leonardo de Moura	7b77863507	refactor(lua/name): improve name bindings for Lua Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-04 18:44:20 -08:00
Leonardo de Moura	9884c056ce	feat(lua): allow Lean to be compiled with Lua 5.1 and LuaJit Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-03 12:40:44 -08:00
Leonardo de Moura	e2da8c1f4d	feat(lua/numerics): expose mpz and mpq numbers in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-03 12:05:54 -08:00
Leonardo de Moura	dbf2d56c77	feat(lua/name): expose hierarchical names in the Lua bindings Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-02 20:49:42 -07:00
Leonardo de Moura	bf998d8661	feat(frontends/lean/parser): allow 'typeless' definitions, the type is inferred by the system Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-11-01 08:51:49 -07:00
Leonardo de Moura	96dcd003c6	fix(frontends/lean/parser): associated position with 'type' placeholder Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-31 16:27:36 -07:00
Leonardo de Moura	aa99ac6618	feat(kernel/value): allow semantic attachments to use coercions when being pretty printed For example, this feature is useful when displaying the integer value 10 with coercions enabled. In this case, we want to display "nat_to_int 10" instead of "10". Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-30 11:42:26 -07:00
Leonardo de Moura	032f5cd7b3	feat(frontends/lean): make the 'expression template' argument in Subst implicit because higher-order matching can infer it. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-30 10:45:43 -07:00
Leonardo de Moura	bc92671ae4	fix(frontends/lean/notation): adjust the implicit arguments of TransExt, and add new test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 17:12:50 -07:00
Leonardo de Moura	e3228b1f5c	test(frontends/lean): add 'l = nil' test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 16:30:03 -07:00
Leonardo de Moura	4dd6cead83	refactor(equality): make homogeneous equality the default equality It was not a good idea to use heterogeneous equality as the default equality in Lean. It creates the following problems. - Heterogeneous equality does not propagate constraints in the elaborator. For example, suppose that l has type (List Int), then the expression l = nil will not propagate the type (List Int) to nil. - It is easy to write false. For example, suppose x has type Real, and the user writes x = 0. This is equivalent to false, since 0 has type Nat. The elaborator cannot introduce the coercion since x = 0 is a type correct expression. Homogeneous equality does not suffer from the problems above. We keep heterogeneous equality because it is useful for generating proof terms. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 16:20:06 -07:00
Leonardo de Moura	d0009d0242	feat(frontends/lean): make the first argument of if-expression implicit, add support for marking implicit arguments on builtin symbols (aka semantic attachments) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 15:53:50 -07:00
Leonardo de Moura	2d88922543	feat(frontends/lean/elaborator): solve easy overloads at preprocessing time Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 10:07:15 -07:00
Leonardo de Moura	7c8daf8974	fix(kernel/metavar): make sure the justification and substitution are always matching each other Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 02:39:52 -07:00
Leonardo de Moura	2c6d4d2225	fix(kernel/normalizer): do not apply substitutions in the normalizer It is incorrect to apply substitutions during normalization. The problem is that we do not have support for tracking justifications in the normalizer. So, substitutions were being silently applied during normalization. Thus, the correctness of the conflict resolution in the elaboration was being affected. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-29 02:14:48 -07:00
Leonardo de Moura	dbefc91151	fix(kernel/metavar): add normalize assignment justification We need that when we normalize the assignment in a metavariable environment. That is, we replace metavariable in a substitution with other assignments. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-27 11:02:34 -07:00
Leonardo de Moura	cb06d0a959	test(frontends/lean): add example showing higher order matching is working, and is useful Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 20:18:48 -07:00
Leonardo de Moura	02c22e509d	fix(tests/lean): remove obsolete comments Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 20:16:02 -07:00
Leonardo de Moura	250cf70410	test(frontends/lean): all 'bad' examples can be solved Move them to the main test directory Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 20:12:58 -07:00
Leonardo de Moura	c1c1af4b98	fix(tests/lean): add parenthesis Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 20:04:50 -07:00
Leonardo de Moura	a5c3829d1b	feat(kernel): add unexpected_metavar_occurrence exception Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 19:56:44 -07:00
Leonardo de Moura	46b9b2114a	fix(tests/lean): adjust error messages in the expected output Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 19:27:26 -07:00
Leonardo de Moura	e55fb4f165	fix(tests/lean): adjust expected results, the new result is also acceptable Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 17:54:09 -07:00
Leonardo de Moura	d2f9c24d3c	fix(tests/lean): adjust tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 15:42:17 -07:00
Leonardo de Moura	a7f94b55db	fix(frontends/lean/elaborator): fix bugs and adjust tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-24 15:29:56 -07:00
Leonardo de Moura	29ad71f9fc	test(conversion): add more conversion tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-10-15 15:35:08 -07:00
Leonardo de Moura	99a163f11d	Simplify metavariable context. Now, we have only 'lift' and 'inst' instead of 'subst', 'lift' and 'lower' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-16 19:32:28 -07:00
Leonardo de Moura	63e102055e	Move metavariables to the kernel. This is the first step for implementing the new elaborator. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-15 12:09:01 -07:00
Leonardo de Moura	4c67721d32	Fix test error on Cygwin Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-09 18:35:11 -07:00
Leonardo de Moura	d912c9cd09	Add more 'bad' examples Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-09 09:19:49 -07:00
Leonardo de Moura	0a08494f4d	Add another bad example for current elaborator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-08 23:21:43 -07:00
Leonardo de Moura	2ca30571b4	Display the input term in the output of the Check command. It is useful to see the fully elaborated term. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-08 22:55:21 -07:00
Leonardo de Moura	59a589037e	Keep expanded form when pretty printings variable declarations with implicit marks (i.e., curly braces) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-08 11:23:46 -07:00
Leonardo de Moura	df116f88e0	Improve pretty printer for Pi's Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-08 11:04:07 -07:00
Leonardo de Moura	6bb9fc859e	Add examples that demonstrate limitations of the current elaborator. The new design, we are working on, will be able to solve them. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-07 19:40:40 -07:00
Leonardo de Moura	b92bbeb83b	Add casting propagation and normalization Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 20:45:26 -07:00
Leonardo de Moura	c0c2f52087	Add Cast, DomInj and RanInj. Improve operator << for lean_frontend objects. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 18:32:15 -07:00
Leonardo de Moura	b62816cc25	Fix problem with pretty printer. Add another test for elaborator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 18:01:11 -07:00
Leonardo de Moura	edafd519e1	Add missing case to elaborator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 17:43:08 -07:00
Leonardo de Moura	26bf7bcaac	Fix bug in the elaborator. Move character ' to class A Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 17:12:35 -07:00
Leonardo de Moura	8840b37258	Fix type checker and elaborator for let expressions. Fix get_coercions (we need to pass the context). Fix pretty printer for def_type_mismatch_exception. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 11:02:00 -07:00
Leonardo de Moura	2459c4ae7c	Add (optional) type to let declarations Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 10:06:26 -07:00
Leonardo de Moura	6da194334e	Move 'slow' test files to different subdir. Modify CTestCustom.cmake.in to run leantests. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 08:48:12 -07:00
Leonardo de Moura	6f3b0c30fb	Add 'Variables' command. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 08:48:12 -07:00
Leonardo de Moura	3dc55c452c	Parse decimal values Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-06 08:48:12 -07:00
Leonardo de Moura	87d3961158	Improve elaborator error messages Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-04 16:36:58 -07:00
Leonardo de Moura	613d83cdf4	Improve application type mismatch errors. We also show the implicit arguments (not just their types) Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-04 16:36:58 -07:00
Leonardo de Moura	be7fa0932a	Add unicode name for the types: Nat, Int and Real Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-04 09:03:41 -07:00
Leonardo de Moura	e955c054ca	Modify type checker. Now, it only accepts builtin values that have been declared in the environment. The idea is to be able to track which classes of builtin values have been used in a given environment. We want to be able to quantify the size of the trusted code base for a particular development. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-04 08:30:04 -07:00
Leonardo de Moura	fc9e395818	Define absolute value function and notation for it. Add new example. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 20:39:54 -07:00
Leonardo de Moura	3992c4b8f9	Define divides, and add examples Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 20:18:20 -07:00
Leonardo de Moura	51422fe654	Modify the parser for accepting expressions such as: 'fun a b, f a b', 'forall a, f a > 0', etc. This is just syntax sugar for 'fun (a : _) (b : _), f a b' and 'forall a : _, f a > 0' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 17:24:05 -07:00
Leonardo de Moura	6f3fa63ccb	Add missing test Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 14:51:34 -07:00
Leonardo de Moura	a341643335	Fix unit tests for Windows Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 10:44:51 -07:00
Leonardo de Moura	544229e5d3	Create pp::unicode option. The idea is to be able to disable unicode characters, but still be able to use mixfix notation. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-03 10:11:45 -07:00
Leonardo de Moura	e031d7bc10	Improve error messages when overloads+coercions do not work Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 20:05:47 -07:00
Leonardo de Moura	fd44ec8d79	Improve application type mismatch error messages Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 18:28:12 -07:00
Leonardo de Moura	72188691de	Add hyperbolic functions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 17:28:43 -07:00
Leonardo de Moura	4eaba93591	Add trigonometric functions Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 17:03:02 -07:00
Leonardo de Moura	395513258e	Define mod and unary minus Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 16:31:44 -07:00
Leonardo de Moura	abc939382b	Add Real arithmetic. Fix elaborator for coercions. Now, two overloads are considered ambiguous if they need the same number of coercions. Improve pretty printer for nest infix operators with same precedence and associativity. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 13:20:00 -07:00
Leonardo de Moura	e218b92a9d	Modify verbose message for Set command Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 12:29:21 -07:00
Leonardo de Moura	0a67679afb	Add natural numbers. Fix how coercions and overloads interact (switch to approach used in C++). Add notation for natural and integer arithmetic. Rename m and u universe variables to M and U. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-02 12:24:29 -07:00
Leonardo de Moura	c97e669f0c	Add coercion support in the elaborator and pretty printer Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 19:09:07 -07:00
Leonardo de Moura	42be7a4989	Add coercion declarations Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 18:11:28 -07:00
Leonardo de Moura	d27680d7fc	Add support for overloads in the elaborator Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 14:54:02 -07:00
Leonardo de Moura	a3bbd9fbb5	Minimize use the colors in tests. The colors make the diff hard to read Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 10:34:57 -07:00
Leonardo de Moura	598daa40bc	Refactor elaborator for supporting overloads Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 10:24:10 -07:00
Leonardo de Moura	447bb6db0e	Make sure we have unlimited stack space for testing the scripts Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-09-01 07:58:58 -07:00
Leonardo de Moura	51640ecff8	Move files in examples directory to tests directory. They are not real examples Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-08-31 19:16:30 -07:00
Leonardo de Moura	a5adddaf14	Add more tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-08-31 18:46:18 -07:00
Leonardo de Moura	389f23f356	Add test script Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>	2013-08-31 18:31:39 -07:00

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848 commits