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439 commits

Author SHA1 Message Date
Leonardo de Moura
e68007a727 fix(frontends/lean/builtin_tactics): adjust tactics precedence 2014-10-20 17:10:16 -07:00
Leonardo de Moura
9b8f60b739 feat(frontends/lean/builtin_exprs): tolerate dangling ',' in begin-end block 
This is useful when debugging proofs.
 2014-10-20 15:59:49 -07:00
Leonardo de Moura
7d0100a340 feat(library/tactic): add 'intros' tactic 2014-10-20 15:26:16 -07:00
Leonardo de Moura
e6606ef2ac feat(library/tactic): add 'rename' hypothesis tactic 2014-10-14 18:19:34 -07:00
Leonardo de Moura
58c9421bab refactor(library/tactic): elaborate expressions nested in tactics with respect to current goal, save postponed constraints (e.g., flex-flex constraints) closes #44, fixes #70 2014-10-14 17:18:40 -07:00
Leonardo de Moura
b7c1b348d1 feat(frontends/lean/inductive_cmd): don't force user to repeat argument declarations in every datatype in a mutually recursive datatype declaration 2014-10-13 20:53:09 -07:00
Leonardo de Moura
08c0fb3a64 test(tests/lean/run): expand tree example 2014-10-13 07:08:29 -07:00
Leonardo de Moura
5c1d5133dd fix(library/data/prod): make the notation for tuples and product types consistent 2014-10-13 06:48:37 -07:00
Leonardo de Moura
a26618e0f2 feat(frontends/lean): add '[]' notation for marking arguments where class-instance resolution should be applied 2014-10-12 13:06:00 -07:00
Leonardo de Moura
158682219f feat(frontends/lean): allow parameters only in contexts 2014-10-11 17:13:56 -07:00
Leonardo de Moura
f0523a3465 feat(frontends/lean): namespaces also define scope for variables 2014-10-10 16:21:30 -07:00
Leonardo de Moura
0641ee33ce feat(frontends/lean): allow variables anywhere 2014-10-10 16:16:19 -07:00
Leonardo de Moura
235b8975d2 feat(kernel/inductive): K-like reduction in the kernel 
Given (H_1 : a = a), we have that
      eq.rec H_2 H_1
reduces to H_2

This is not exclusive to equality.
It applies to any inductive datatype in Prop, containing only one
constructor with zero "arguments" (we say they are nullary).

BTW, the restriction to only one constructor is not needed, but it is
does not buy much to support multiple nullary constructors since Prop is
proof irrelevant.
 2014-10-10 14:37:45 -07:00
Leonardo de Moura
402a351937 feat(frontends/lean): add 'universes' command 2014-10-10 08:45:59 -07:00
Leonardo de Moura
8f1b6178a7 chore(*): minimize the use of parameters 2014-10-09 07:13:06 -07:00
Leonardo de Moura
8c5d3392c7 fix(library/algebra/category): minor fixes to reflect recent changes, and fix tests 2014-10-08 23:44:09 -07:00
Leonardo de Moura
25fd370c51 fix(frontends/lean): bug when using nested sections and parameters 
see tests/lean/run/section4.lean
 2014-10-08 22:23:20 -07:00
Leonardo de Moura
57c85221fe fix(frontends/lean): collect used universe levels after elaboration in the check command 2014-10-08 22:23:19 -07:00
Leonardo de Moura
eab9321a3b fix(frontends/lean): make all variables/parameters visible for 'variables' command 2014-10-08 22:23:19 -07:00
Leonardo de Moura
757cb46579 test(tests/lean/run): add no_confusion test 2014-10-08 22:23:19 -07:00
Leonardo de Moura
744cee8dd8 feat(frontends/lean): force 'classes' to be declared before instances are declared, closes #228 2014-10-07 18:02:15 -07:00
Leonardo de Moura
d8572e249d feat(frontends/lean/builtin_cmds): add 'print classes' command 2014-10-07 17:30:57 -07:00
Leonardo de Moura
90ece4dd1b feat(frontends/lean): remove tactic hints for specific classes 
The idea is to separate class-instance resolution and tactic framework
as two independent engines.
 2014-10-07 09:44:01 -07:00
Leonardo de Moura
f7e1b67f6c test(tests/lean/run/print): add tests for 'print' cmd 2014-10-05 19:06:29 -07:00
Leonardo de Moura
a0d4d82f3f refactor(data/nat/order): use new policy for marking implicit arguments and '!' operator 2014-10-05 11:36:39 -07:00
Leonardo de Moura
73aa024c31 refactor(library/logic): remove 'core' subdirectory 2014-10-05 10:50:13 -07:00
Leonardo de Moura
7073f036d8 test(tests/lean/run): add additional tests for section parameter/variable and strict implicit argument 2014-10-04 08:15:43 -07:00
Leonardo de Moura
e71d4548de fix(frontends/lean): universe levels associated with section variables should not be fixed in the section 2014-10-04 07:13:19 -07:00
Leonardo de Moura
938e12baa1 feat(frontends/lean/notation_cmd): allow local numeric notation 2014-10-03 13:55:57 -07:00
Leonardo de Moura
fd013e8d07 chore(tests/lean/run/group3): cleanup test 2014-10-03 13:55:57 -07:00
Leonardo de Moura
c0725d1934 refactor(frontends/lean): remove 'including' expressions 2014-10-03 09:09:27 -07:00
Leonardo de Moura
01d4644026 fix(frontends/lean): bug in include/omit commands: in the end of section/context, the configuration must be restored 2014-10-03 08:52:35 -07:00
Leonardo de Moura
4946f55290 refactor(frontends/lean): constant/axiom are top-level commands, parameter/variable/hypothesis/conjecture are section/context-level commands 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-10-02 17:55:34 -07:00
Leonardo de Moura
4cb54ac825 feat(frontends/lean/elaborator): more strict test for bad universe solution 2014-10-02 14:29:51 -07:00
Leonardo de Moura
98e66586e9 feat(frontends/lean/elaborator): elaborator rejects 'Type' if the universe is explicit 2014-10-02 14:29:51 -07:00
Leonardo de Moura
153e3927ac feat(frontends/lean/elaborator): modify '!' semantics: it stops consuming arguments as soon it finds an argument that does not occur in the rest of the type. 2014-10-01 18:50:17 -07:00
Leonardo de Moura
e64d5c4a4a refactor(library/data/nat): use new operator '!' 2014-10-01 18:39:47 -07:00
Leonardo de Moura
716cd4d651 refactor(library): rename namespace eq_ops to eq.ops 2014-10-01 17:51:17 -07:00
Leonardo de Moura
ead827d6b7 feat(frontends/lean): add ! operator the "dual" of @, closes #220 2014-10-01 17:13:41 -07:00
Leonardo de Moura
966366e18e feat(kernel/inductive): relaxed rules for defining datatypes with explicit universes, closes #217 2014-10-01 10:56:05 -07:00
Leonardo de Moura
263b081e69 fix(frontends/lean/inductive_cmd): temporary aliases must take explicit universes into account, fixes #215 2014-10-01 10:24:44 -07:00
Leonardo de Moura
2730e5163e feat(frontends/lean): allow 'sorry' implicit argument to access the whole context, and avoid cryptic error message 
See new test for explanation.
 2014-09-30 18:04:04 -07:00
Leonardo de Moura
a0c37b231f feat(kernel/expr): add hash_bi function that takes binder information into account 2014-09-29 16:44:55 -07:00
Leonardo de Moura
21be308884 feat(frontends/lean/inductive_cmd): infer implicit argument annotation after elaboration, allow user to disable it by using '()' annotation, closes #210 2014-09-29 11:11:17 -07:00
Leonardo de Moura
9c55bbb871 feat(frontends/lean/elaborator): report an error when Type becomes a Prop after elaboration, closes #208 2014-09-29 08:18:10 -07:00
Leonardo de Moura
22e47430b5 feat(library/unifier): add 'on-demand' choice constraints, they are processed as soon as their type does not contain meta-variables anymore 2014-09-27 21:50:39 -07:00
Leonardo de Moura
c775da16ec feat(frontends/lean/elaborator): discard partial solution during 
class-instance resolution, use only tactic_hints associated with
classes, enforce is_strict
 2014-09-25 19:46:08 -07:00
Leonardo de Moura
fd5daa8fda feat(frontends/lean): use coercions to function-class and sort-class in 
function arguments, closes #203
 2014-09-20 09:00:10 -07:00
Leonardo de Moura
86f06a54ea refactor(library/data/vector): rename 'vec' to 'vector' 2014-09-19 16:20:50 -07:00
Leonardo de Moura
4e2377ddfc refactor(frontends/lean): replace '[protected]' modifier with 'protected definition' and 'protected theorem', '[protected]' is not a hint. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
08ccd58eb6 feat(frontends/lean): add 'reducible' modifier for controlling which 
definitions are unfolded during elaboration

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
baf4c01de8 feat(frontends/lean): definitions are opaque by default 2014-09-19 15:54:32 -07:00
Leonardo de Moura
48dbd13eef feat(frontends/lean): allow transient classes/instances, i.e., 
classes/instances that are not saved in .olean files
 2014-09-19 15:54:32 -07:00
Leonardo de Moura
e3e2370a38 feat(frontends/lean): split 'opaque_hint' command into 'opaque' and 'transparent' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-16 18:03:40 -07:00
Jeremy Avigad
74cb289d48 refactor(library): rename algebra directory to struc, move categories.lean to algebra 2014-09-16 13:13:01 -07:00
Jeremy Avigad
9988914189 refactor(library/logic): move files in classes directory to core 2014-09-16 13:13:01 -07:00
Leonardo de Moura
dffe9a6f17 fix(frontends/lean/elaborator): more robust support for coercions to 
function-class that contains implicit arguments
 2014-09-16 13:08:34 -07:00
Leonardo de Moura
d0d23eb525 fix(frontends/lean/inductive_cmd): improve name resolution in inductive 
command

The new test demonstrates the problem being fixed by this commit
 2014-09-16 09:48:51 -07:00
Leonardo de Moura
8e52c478b1 refactor(library/data/num): add 'succ', 'pred' and 'size' (aka number of bits), 
rename is_inhabited theorems
 2014-09-15 16:05:17 -07:00
Leonardo de Moura
edcbe6fe10 feat(frontends/lean): allow multiple coercions from class A to B, closes #187 
See new tests (for examples)
tests/lean/run/coe10.lean
tests/lean/run/coe11.lean
tests/lean/run/coe9.lean

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-14 12:59:43 -07:00
Leonardo de Moura
029acbd1df feat(library/coercion): better support for coercions to function-class. closes #185 2014-09-12 13:17:20 -07:00
Leonardo de Moura
a2e36e97f2 fix(frontends/lean/builtin_cmds): allow coercion command inside section, fixes #186 2014-09-12 12:13:29 -07:00
Leonardo de Moura
010ecebfea feat(frontends/lean): add proof-qed expression 
Remark: we still have to add support to it in the elaborator.
Right now, it is just an embellished parenthesis.
 2014-09-11 18:14:49 -07:00
Leonardo de Moura
7ffe73b8ca fix(frontends/lean): name clash inside section, fixes #181 2014-09-11 16:37:23 -07:00
Leonardo de Moura
5cff53c447 test(tests/lean/run): add section test 2014-09-11 15:33:20 -07:00
Leonardo de Moura
570879b55f feat(frontends/lean): add declaration to namespace without opening it, closes #161 2014-09-09 18:02:14 -07:00
Leonardo de Moura
efb14d906b chore(tests/lean): add untracked tests 2014-09-09 16:21:30 -07:00
Leonardo de Moura
9b9adf8831 refactor(library): replace decidable_eq with abbreviation 2014-09-09 16:09:05 -07:00
Leonardo de Moura
47e02342bb feat(frontends/lean/elaborator): use whnf in class-instance resolution, closes #160 2014-09-09 15:04:44 -07:00
Leonardo de Moura
abdd784729 feat(shell): start 'lean --server' with 'pp.beta = true' 2014-09-09 14:13:35 -07:00
Leonardo de Moura
187661aa6a feat(library/unifier): consider whnf case-split on flex-rigid constraints whenever the rhs contains a local constant that is not in the lhs 2014-09-09 09:27:26 -07:00
Leonardo de Moura
4088cdc139 chore(frontend/lean/pp_options): use consistent name convention for pp option names 2014-09-09 09:27:26 -07:00
Leonardo de Moura
b4793df653 feat(frontends/lean): rename '[fact]' to '[visible]' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-08 07:47:42 -07:00
Leonardo de Moura
559dd586f2 feat(library): add 'decidable_eq' class 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-07 22:23:36 -07:00
Leonardo de Moura
cbdfb0dcdc feat(frontends/lean/elaborator): (Pi/forall) intro in class inference, closes #77 2014-09-07 19:59:34 -07:00
Leonardo de Moura
2631979f5c fix(library/scoped_ext): section/context should not affect namespace 2014-09-07 19:59:34 -07:00
Leonardo de Moura
3310eb3dfc feat(frontends/lean): remove restriction on implict arguments, add new test that demonstrates the new feature 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-07 12:29:32 -07:00
Leonardo de Moura
5549295c47 fix(frontends/lean/inductive_cmd): bug when elaborating inductive tyoe parameters 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-06 11:38:32 -07:00
Leonardo de Moura
bbff564a1c feat(frontends/lean): persistent notation in sections 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-06 11:14:20 -07:00
Leonardo de Moura
b5f595c432 fix(frontends/lean/inductive_cmd): bugs when declarating inductive datatypes in sections, fixes #141, fixes #142 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-05 19:17:09 -07:00
Leonardo de Moura
6632a50015 refactor(library): add namespaces 'or', 'and' and 'iff' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 21:25:21 -07:00
Leonardo de Moura
68d9bef860 refactor(library): add 'eq' and 'ne' namespaces 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 18:41:06 -07:00
Leonardo de Moura
2bc6f92d33 refactor(library): add 'and' namespace 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 17:44:53 -07:00
Leonardo de Moura
364bba2129 feat(frontends/lean/inductive_cmd): prefix introduction rules with the name of the inductive datatype 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 17:26:36 -07:00
Leonardo de Moura
8743394627 refactor(kernel/inductive): replace recursor name, use '.rec' instead of '_rec' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 15:04:57 -07:00
Leonardo de Moura
653141135d chore(tests/lean): add missing tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-04 15:04:57 -07:00
Leonardo de Moura
f9a90b9920 feat(frontends/lean): add 'export' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 18:37:01 -07:00
Leonardo de Moura
5e18e6609c feat(frontends/lean): add 'as' clause to 'open' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 17:37:02 -07:00
Leonardo de Moura
e51c4ad2e9 feat(frontends/lean): rename 'using' command to 'open' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-03 16:00:38 -07:00
Leonardo de Moura
0f9478d91e feat(frontends/lean): add 'class' command back 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-02 15:04:23 -07:00
Leonardo de Moura
8dec18018c refactor(library/data/list): avoid placeholders '_', make first argument of false_elim implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-09-01 19:44:04 -07:00
Jeremy Avigad
6ffd719c1a refactor(library/logic): move identities from classical to identities 2014-08-29 22:28:22 -07:00
Leonardo de Moura
1e80a9dfe9 feat(frontends/lean): avoid exponential blowup when processing let-expressions with a lot of sharing, cleanup show-expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 16:27:52 -07:00
Leonardo de Moura
d536475e49 refactor(library): more implicit_args for: and_assoc, and_comm, or_assoc, or_comm, if_pos, if_neg 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 11:10:04 -07:00
Leonardo de Moura
6b7e79b62f feat(library/data/nat): mark more arguments implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-28 10:38:58 -07:00
Jeremy Avigad
00a049a667 refactor(library/logic): rename connectives -> core, basic -> connectives 2014-08-27 18:43:24 -07:00
Leonardo de Moura
2d78387541 refactor(library/logic/basic): rename absurd_elim to absurd, delete contrapos and trivial_not_true theorems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-27 18:34:09 -07:00
Leonardo de Moura
477b7b4811 fix(tests/lean/run/class_coe): adjust test to reflect library changes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-27 17:55:42 -07:00
Leonardo de Moura
a8d58fdd33 refactor(library): mark absurd_elim argument as implicit 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-26 18:27:39 -07:00
Leonardo de Moura
c11fd6b0d2 fix(tests/lean/run): adjust tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 21:39:46 -07:00
Leonardo de Moura
04d9eb17d1 feat(kernel/conveter): improve support for proof irrelevant in the converter 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 11:19:18 -07:00
Leonardo de Moura
42a8fb5965 chore(tests/lean/run/matrix): simplify same_dim_irrel proof 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 09:27:19 -07:00
Leonardo de Moura
60d5e87a66 test(tests/lean/run): add matrix test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-25 09:04:39 -07:00
Leonardo de Moura
cbc81ea6c5 chore(*): minimize dependencies on tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-24 19:58:48 -07:00
Leonardo de Moura
dbaf81e16d refactor(library): remove unnecessary 'standard' subdirectory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-23 18:08:09 -07:00
Jeremy Avigad
47a1c00a6d refactor(library/standard): collect notation in general_notation 2014-08-23 17:53:02 -07:00
Leonardo de Moura
a5f0593df1 feat(*): change inductive datatype syntax 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-22 15:46:10 -07:00
Leonardo de Moura
626cd952e7 test(tests/lean/run): add overload test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-22 15:23:33 -07:00
Leonardo de Moura
937c465685 fix(library/unifier): too much reduction 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 21:37:51 -07:00
Leonardo de Moura
6cf73b51e2 fix(library/unifier): bug in occurs_check, the dependency may be eliminated by reducing term 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 17:56:18 -07:00
Leonardo de Moura
725f5ba0a0 feat(frontends/lean): use 'begin-end' instead of 'proof-qed' for blocks of tactics, closes #81 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-21 16:58:25 -07:00
Jeremy Avigad
6264fb52d6 fix(lean/library/standard): fix tests, more cleanup 2014-08-20 18:04:31 -07:00
Leonardo de Moura
f5987b7bda refactor(library/unifier): make it easier to add new options to the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 17:30:08 -07:00
Leonardo de Moura
b60c9d9ecc test(tests/lean/run): add test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-20 16:46:19 -07:00
Leonardo de Moura
f0d50e0d33 feat(frontends/lean): change the name resolution rules: when in a namespace N that defines C, then C always refers to N.C (i.e., it overrides any alias) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
08ae17650b feat(frontends/lean): try overloaded notation and declarations in the order they were defined 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
919f02983e feat(frontends/lean/elaborator): case-split on coercions that cannot be resolved by postponing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
4a96fefd96 fix(library/unifier): bug in unifier priority queue 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-18 18:58:50 -07:00
Leonardo de Moura
1436212a34 fix(library/unifier): use depth-first search strategy for solving class-instance constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-16 13:51:24 -07:00
Leonardo de Moura
670bfe24f5 chore(build): remove hott library directory, and move hott tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-15 13:30:56 -07:00
Leonardo de Moura
094459504b fix(tests/lean/run): adjust test to changes in the library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-15 13:27:18 -07:00
Leonardo de Moura
60ab6d3bd8 feat(frontends/lean): remove feature that in declarations such as (A B : Type), forced A and B to be in the same universe 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-12 17:40:30 -07:00
Leonardo de Moura
70c0eda9fc feat(frontends/lean): make sure all scopes are closed in the end of the module 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 17:08:59 -07:00
Leonardo de Moura
1a67e69678 feat(library/scoped_ext): force user to end a scope with an identifier matching the one used in beginning of scope, closes #30 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 16:59:08 -07:00
Leonardo de Moura
9e6c5695be fix(library/unifier): make sure the imitation step is type correct, fix ensure_sufficient_args 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 16:09:45 -07:00
Leonardo de Moura
4ad7e709aa feat(frontends/lean): default for inductive types, closes #32 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-07 07:52:37 -07:00
Leonardo de Moura
069f217215 fix(frontends/lean/elaborator): use full local context for metavariables due to coercions and overloads 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 17:21:21 -07:00
Leonardo de Moura
d1924097d5 feat(library/match): add 'local' backtracking 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 10:09:00 -07:00
Leonardo de Moura
e6ffda0c51 feat(library/match): add basic match_plugin that just invokes whnf before failing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-05 08:37:03 -07:00
Leonardo de Moura
56d151ef7f feat(frontends/lean): 'partial' aliases. closes #24 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-04 22:08:10 -07:00
Leonardo de Moura
938b4e8421 test(tests/lean/run): add unicode in identifiers test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 20:05:46 -07:00
Leonardo de Moura
fbc4a7af3b feat(library/unifier): when unifier.expensive == true, then use only restrict higher-order unification (a fragment slightly more general than higher-order pattern matching) for solving class-instance constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 14:30:25 -07:00
Leonardo de Moura
5e2185cfbe feat(library/unifier): postpone as much as possible universe constraints of the form ?m1 =?= max(l1, l2) and ?m1 =?= imax(l1, l2) where ?m1 occurs in the right hand side. When there is nothing else to be done, try to solve them by reducing to ?m1 = l1 and ?m1 = l2. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-02 09:14:35 -07:00
Leonardo de Moura
3795d466c1 fix(frontends/lean/elaborator): provide type information for expressions using '@' operator, and strict function applications 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 20:57:24 -07:00
Leonardo de Moura
4cb8fb20fe fix(frontends/lean/elaborator): bug when mixing string and non-strict implict arguments 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 10:58:20 -07:00
Leonardo de Moura
8e6324185a fix(tests/lean): adjust tests to new library structure 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-08-01 09:37:23 -07:00
Leonardo de Moura
6ca80b5000 feat(frontends/lean): add 'sorry' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 18:35:57 -07:00
Leonardo de Moura
de05c041c7 feat(library/unifier): add flag for enabling/disabling expensive extensions in the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 16:46:16 -07:00
Leonardo de Moura
f57fc33442 fix(library/unifier): bug that was making unifier miss solutions, and add a new case-split that tries to solve flex_rigid constraints by putting the rhs into whnf 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-31 16:46:16 -07:00
Leonardo de Moura
9637ceb86e feat(frontends/lean): allow user to provide a terminator for 'foldr' and 'foldl' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-30 15:04:44 -07:00
Leonardo de Moura
450131692a fix(library/converter): missing constraint on eta expansion 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-30 10:43:47 -07:00
Leonardo de Moura
936bb2744b fix(library/unifier): add a flag to sign that a choice constraint owns a metavariable ?m, that is, it has the right to assign ?m, and the unifier should postpone any other constraint that tries to assign ?m 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 17:32:55 -07:00
Leonardo de Moura
b15f1bb8c7 fix(frontends/lean/elaborator): apply coercions in definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 13:55:39 -07:00
Leonardo de Moura
501cae37e5 fix(frontends/lean/parser): bug in check_constant_next (when invoked inside of a section) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-29 13:04:58 -07:00
Leonardo de Moura
105c29b51e refactor(library/standard): use new coding style, rename bool.b0 and bool.b1 to bool.ff and bool.tt 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-28 19:59:38 -07:00
Leonardo de Moura
4b2e403023 test(tests/lean/run): add more tests sent by Cody 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 12:17:38 -07:00
Leonardo de Moura
faee08591f fix(*): make sure elaborator and type_checker use the same "rules" for treating opaque definitions 
This is a big change because we have to store in constraints whether we can use the "relaxed" rules or not.
The "relaxed" case says that when type checking the value of an opaque definition we can treat other opaque definitions in the same module as transparent.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 12:12:54 -07:00
Leonardo de Moura
6ca120bf77 test(tests/lean/run): add Cody's file to test suite 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-27 08:17:46 -07:00
Leonardo de Moura
23af5ab217 fix(library/unifier): eager whnf application 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-26 10:37:02 -07:00
Leonardo de Moura
e79b0b11cf test(tests/lean/run): another test for the unifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 20:55:05 -07:00
Leonardo de Moura
cf44c80ffb fix(library/inductive_unifier_plugin): do not try to solve type incorrect constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 16:00:38 -07:00
Leonardo de Moura
7b84503133 fix(library/unifier): do not let a unification plugin to 'prioritize' a flex-flex constraint, and add missing case 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 15:03:57 -07:00
Leonardo de Moura
0f12e5a35b fix(library/inductive_unifier_plugin): unification problem failure on problems with inductive datatypes 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 13:49:45 -07:00
Leonardo de Moura
21176c61fe fix(tests/lean): move crash.lean to different directory 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 08:48:35 -07:00
Leonardo de Moura
e7c7d5718a fix(frontends/lean/pp): fix bug in the pretty printer 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-25 08:30:30 -07:00
Leonardo de Moura
15c1e39f88 feat(frontends/lean/elaborator): distribute application over choice, this feature improves the support for overloaded aliases 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 23:43:40 -07:00
Leonardo de Moura
905a1095f9 fix(tests/lean/run/tactic14): remove not_intro, it is not needed anymore 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 23:41:23 -07:00
Leonardo de Moura
5529ef1056 feat(library/standard): add function 'helper' module 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-24 16:29:39 -07:00
Leonardo de Moura
d998bf9300 test(tests/lean/run): add some 'lost' tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-23 08:22:53 -07:00
Leonardo de Moura
b522ea6f2d refactor(library/standard): rename bit to bool 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:49:54 -07:00
Leonardo de Moura
5eaf04518b refactor(*): rename Bool to Prop 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 09:43:18 -07:00
Leonardo de Moura
a9f7d87aae test(tests/lean/run/decidable): show implicit argument that is computed automatically 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-22 05:58:36 -07:00
Leonardo de Moura
5e8c128b00 feat(library/standard): add more decidable instances 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-20 01:10:49 +01:00
Leonardo de Moura
6b60db7b93 fix(frontends/lean/elaborator): bug when mixing implicit arguments and sections 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-19 09:55:34 +01:00
Leonardo de Moura
0f44e3c9f4 fix(frontends/lean): calc configuration commands, add check_constant_next auxiliary method 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-15 01:19:47 +01:00
Leonardo de Moura
2e6184a721 fix(frontends/lean): more bugs in section management 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-14 06:27:36 +01:00
Leonardo de Moura
8167ad329f fix(frontends/lean): bug in section management 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-14 05:04:01 +01:00
Leonardo de Moura
fab7934265 refactor(frontends/lean/elaborator): modify when tactic_hints are invoked, add the notion of strict placeholder 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-14 02:53:02 +01:00
Leonardo de Moura
e432e23115 test(tests/lean/run/class5): improve test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-13 22:39:16 +01:00
Leonardo de Moura
1d273fcfdd chore(frontends/lean): rename 'obtains' to 'obtain' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-12 06:35:24 +01:00
Leonardo de Moura
1230e942aa feat(library/unifier): handle 'first-order' flex-flex constraints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-11 04:51:28 +01:00
Leonardo de Moura
cf34f75ab5 feat(frontends/lean): add 'obtains' expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-11 04:08:51 +01:00
Leonardo de Moura
92bb046854 test(tests/lean/run): add nested let-expr test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 15:56:15 +01:00
Leonardo de Moura
c13c75b93e feat(frontends/lean/pp): add option for displaying fully qualified names 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 15:55:19 +01:00
Leonardo de Moura
06beff327f test(tests/lean/run): add more universe tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 14:43:55 +01:00
Leonardo de Moura
1a6d0784f2 feat(kernel/level): improve universe level normalization procedure 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 13:49:41 +01:00
Leonardo de Moura
d9b2801eeb feat(frontends/lean): use the same universe in declarations such as (A B : Type) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 13:18:52 +01:00
Leonardo de Moura
12d89ea0b9 fix(kernel/level): is_geq predicate 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-10 13:18:41 +01:00
Leonardo de Moura
aff766430d fix(frontends/lean/pp): universe pretty printer 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-09 19:17:28 -07:00
Leonardo de Moura
43eba857cb feat(frontends/lean): add let-expr pretty printer, reduce default indentation to 2 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-09 18:47:10 -07:00
Leonardo de Moura
2ad1a93657 test(tests/lean/run): add append tactic test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 18:21:22 -07:00
Leonardo de Moura
a1601e7a5f feat(library/tactic/apply_tactic): add option for 'refreshing' universe metavariables in the 'apply' tactic 
The new test ../../tests/lean/run/tactic27.lean demonstrates why we need this feature. The tactic 'apply @refl' is actually 'apply @refl.{?l}'. It is used inside of a repeat tactical. Each iteration of the 'repeat' may need to use a different value for ?l. Before this commit, there was not way to say we want a fresh ?l each iteration.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 16:55:23 -07:00
Leonardo de Moura
4505016154 feat(frontends/lean): allow tactic_hints to be applied when class-instance mechanism fails 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 15:08:13 -07:00
Leonardo de Moura
5e836092cc feat(frontends/lean): allow user to suppress proofs in theorems, and let them be inferred automatically using tactic_hints 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 15:08:13 -07:00
Leonardo de Moura
a3be63af73 feat(frontends/lean): add tactic_hint command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-08 15:08:13 -07:00
Leonardo de Moura
da4c1922e3 feat(frontends/lean): add '_root_' prefix for referencing names in the root namespace 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 19:15:46 -07:00
Leonardo de Moura
b43fb7448c feat(frontends/lean): search for identifiers in the stack of namespaces; reject non-atomic names as local names 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 19:00:06 -07:00
Leonardo de Moura
e6d4c01b88 feat(frontends/lean): check whether namespace exists or not in the 'using' command, add to_valid_namespace_name helper function 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 18:17:10 -07:00
Leonardo de Moura
bd1873f6b1 feat(frontends/lean): add coercion modifier 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 17:48:20 -07:00
Leonardo de Moura
08465f049a feat(frontends/lean): remove [class] annotation and 'class' command, they are redundant, we only need [instance] and 'instance' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 16:09:30 -07:00
Leonardo de Moura
112353861c feat(frontends/lean): rename command 'reset_proof_qed' to 'set_proof_qed' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 15:48:16 -07:00
Leonardo de Moura
c16951aba6 fix(library/aliases): aliasing behavior 
The new test '../../tests/lean/run/alias3.lean' demonstrates the issue being fixed.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 15:40:55 -07:00
Leonardo de Moura
b9d08ff28c feat(frontends/lean/builtin_cmds): allow many namespaces in the same 'using' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 14:53:06 -07:00
Leonardo de Moura
d30f387e72 feat(library/standard): add namespace 'pair' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 14:48:19 -07:00
Leonardo de Moura
10b0dfeb37 feat(frontends/lean/class): allow many instances to provided with a single 'instance' command 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 14:41:14 -07:00
Leonardo de Moura
b956ce68d2 feat(frontends/lean/elaborator): keep postponing delayed coercions until the type can be inferred 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 12:50:43 -07:00
Leonardo de Moura
831de22bcd fix(frontends/lean): bugs in notation management 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-07 09:31:42 -07:00
Leonardo de Moura
e8bd267a00 fet(frontends/lean): allow coercions to sort-class in the types of variable and definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-06 21:54:16 -07:00
Leonardo de Moura
48b28ad75c fix(library/unifier): missing test in flex_rigid 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2014-07-06 21:36:23 -07:00
Leonardo de Moura
dcf7cf00ff fix(*): bugs in the type checker, inductive datatypes, and unifier 
The bugs were indentified when performing the tiny change in the file
tests/lean/run/group.lean
 2014-07-06 18:44:56 -07:00