Leonardo de Moura
ea06bb2885
feat(frontends/lean/pp): change how lift local entries are pretty printed
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 17:26:38 -08:00
Leonardo de Moura
a51139e63b
feat(frontends/lean): position information in error messages
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 17:26:38 -08:00
Leonardo de Moura
e85b1f1ac0
feat(library/elaborator): expose elaborator configuration options
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 17:26:38 -08:00
Leonardo de Moura
e4579b93e4
fix(library/elaborator): try first projection before imitation in the higher-order unifier
...
Projections build more general solutions. This commit also adds a test that demonstrates the issue. Before this commit, the elaborator would produce the "constant" predicate (fun x, a + b = b + a).
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 13:35:05 -08:00
Leonardo de Moura
ef321e730f
feat(builtin/tactic): add the 'skip' (bogus) tactic for ignoring a proof hole in a big proof
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 12:47:23 -08:00
Leonardo de Moura
581ae0c83b
chore(build): fix build dependencies
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 09:30:33 -08:00
Leonardo de Moura
db3bcdba55
refactor(builtin): move pair definition and theorems to pair.lean
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 09:20:52 -08:00
Leonardo de Moura
daf7075ce4
refactor(builtin/sum): use new 'have' expression to formalize optional-types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 09:15:12 -08:00
Leonardo de Moura
5d698a60a7
refactor(builtin/sum): use new 'have' expression to formalize sum-types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 08:59:05 -08:00
Leonardo de Moura
1d23d93e60
feat(frontends/lean): new 'have' expression
...
Add 'have' notation suggested by Jeremy Avigad.
Add his example to the test suite.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 08:03:59 -08:00
Leonardo de Moura
ba9a8f9d98
feat(frontends/lean): add 'show' expression syntax sugar
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 07:50:22 -08:00
Leonardo de Moura
90f5a4f813
feat(builtin/sum): cleanup, and avoid unicode character that is not available in some platforms
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-06 00:20:49 -08:00
Leonardo de Moura
c01f82aeb7
feat(builtin): add sum types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-05 23:04:44 -08:00
Leonardo de Moura
87da23649b
feat(builtin/optional): prove dichotomy and induction theorems for optional types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-05 19:49:50 -08:00
Leonardo de Moura
30570c843f
feat(builtin): add optional type
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-05 17:33:06 -08:00
Leonardo de Moura
aec9c84d0d
fix(util/lua): deadlock
...
Errors in the Lua library produce longjmps.
The longjmp will not unwind the C++ stack.
In the new test, the lock was not being released, and the system was deadlocking in the next call that tried to lock the environment
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 15:16:29 -08:00
Leonardo de Moura
f4ec874c6e
refactor(builtin): remove dead module heq
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 14:42:28 -08:00
Leonardo de Moura
0283887ee9
refactor(builtin/kernel): move the heq axioms into kernel.lean
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 14:17:34 -08:00
Leonardo de Moura
493007b7bc
fix(frontends/lean/pp): bug in tuple/pair pretty printing
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 13:58:01 -08:00
Leonardo de Moura
f03c09c10b
feat(library/elaborator): add support for proj/pair/sigma in the the higher-order unification procedure
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 13:53:30 -08:00
Leonardo de Moura
c9b72df34b
fix(frontends/lean/parser): bug when applying tactics to synthesize remaining meta-variables
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 11:36:26 -08:00
Leonardo de Moura
9dc86e3cf5
fix(builtin/kernel): rename generalized proof_irrel axiom to hproof_irrel, and derive the restricted one
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 10:06:29 -08:00
Leonardo de Moura
9a677331da
feat(builtin): simulate subtypes using sigma types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-04 01:46:50 -08:00
Leonardo de Moura
61d0c792ff
fix(frontends/lean/parser): bug in tuple/proj1/proj2
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 22:46:29 -08:00
Leonardo de Moura
4fcc292332
feat(frontends/lean): parse and pretty print pair/tuple projection operators proj1 and proj2, fix bug in the type checker
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 22:10:01 -08:00
Leonardo de Moura
cc96b50644
feat(frontends/lean): support for nary-tuples, improve notation for non-dependent tuples, add support in the elaborator for sigma types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 20:53:11 -08:00
Leonardo de Moura
5c991f8fbf
feat(frontends/lean): parse and pretty print tuples/pairs
...
This commit also fixes a bug in the type checker when processing dependent pairs.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 20:10:30 -08:00
Leonardo de Moura
5e5ab1429d
feat(frontends/lean): parse and pretty print sigma types
...
This commit also fixes some bugs in the implementation of Sigma types.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 18:16:00 -08:00
Leonardo de Moura
8eec289ce1
feat(kernel): add dependent pairs
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 16:52:49 -08:00
Leonardo de Moura
6be50f0133
refactor(builtin/heq): merge cast and heq modules
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-02 15:01:48 -08:00
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
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
0ed35e2133
fix(build): kernel.lean depends on tactic.lua
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 23:15:44 -08:00
Leonardo de Moura
2aaded261e
fix(kernel/environment): imported predicate
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 23:02:19 -08:00
Leonardo de Moura
bc2d504ccc
feat(builtin/kernel): add rewrite rules for if-then-else
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 22:38:35 -08:00
Leonardo de Moura
b444756d20
fix(library/simplifier): missing condition in implication simplification
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 22:14:01 -08:00
Leonardo de Moura
4d533c6a25
feat(builtin/kernel): add nonempty_range theorem
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 22:13:34 -08:00
Leonardo de Moura
ddaf948c72
feat(builtin/kernel): add nonempty_fun theorem
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-30 19:38:51 -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
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
f0a2d3627e
refactor(frontends/lean): use ascii prefix for auxiliary let-declarations
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-29 11:58:09 -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
f101554e93
fix(util/script_exception): make sure a script_nested_exception may have a nested script_nested_exception, use LEAN_THREAD_LOCAL macro instead of thread_local
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-29 08:07:52 -08:00
Leonardo de Moura
24452289dd
feat(library/simplifier): make sure the simplifier can handle meta-variables
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-28 20:30:47 -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
b6985bd713
feat(builtin/kernel): add another rewrite rule
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-28 15:56:26 -08:00
Leonardo de Moura
e2540b68db
fix(src/builtin/tactic): add default rule set if none is provided
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-28 15:56:01 -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
dbdbd211e3
fix(library/simplifier): compilation warning
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 23:29:53 -08:00
Leonardo de Moura
55fde28954
feat(kernel/type_checker): optionally provide metavariable environment in the methods: is_definitionally_equal, is_convertible and ensure_pi
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 17:47:03 -08:00
Leonardo de Moura
160dc71cb5
refactor(kernel/type_checker): use read-only metavariable environment in methods that do not require write access to the metavariable environment
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 17:38:06 -08:00
Leonardo de Moura
05b4d8411b
refactor(kernel/normalizer): normalizer only needs read access to metavariable environment
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 17:03:36 -08:00
Leonardo de Moura
3b152d1a9e
refactor(kernel): use ro_metavar_env instead of metavar_env in places where we only need to read the metavariable environment
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 16:44:43 -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
c088825ef0
feat(library/simplifier): add simplifier_monitor interface
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-27 11:46:28 -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
579b751e01
fix(library/simplifier): compilation warning
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 23:16:24 -08:00
Leonardo de Moura
ceff335bb8
doc(doc/lean/tutorial): update tutorial
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 22:58:44 -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
5e6c1d4904
refactor(builtin/heq): remove axiom hpiext since we don't use it anymore
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 13:11:17 -08:00
Leonardo de Moura
50df761d90
refactor(library/simplifier): remove the is_typem hack, it is not needed anymore now that we don't use hpiext anymore
...
Now, we are again using the following invariant for simplifier_fn::result
The type of in the equality of the result is definitionally equal to the
type of the resultant expression.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 12:21:23 -08:00
Leonardo de Moura
29e448f034
fix(library/simplifier): remove support in the simplifier for (forall x : A, B x) when it is not a proposition, the problem is that hpiext axiom produces an equality in a too big universe
...
For example, in the hpiext axiom, the resultant equality if for (Type M+1)
axiom hpiext {A A' : TypeM} {B : A -> TypeM} {B' : A' -> TypeM} :
A = A' -> (∀ x x', x == x' -> B x = B' x') -> (∀ x, B x) = (∀ x, B' x)
even if the actual arguments A, A’, B, B’ "live" in a much smaller universe (e.g., Type).
So, it would be great if we could move the resultant equality back to the right universe.
I don't see how to do it right now.
The other solution would require a major rewrite of the code base.
We would have to support universe level arguments like Agda, and write the axiom hpiext as:
axiom hpiext {l : level} {A A' : (Type l)} {B : A -> (Type l)} {B' : A' -> (Type l)} :
A = A' -> (∀ x x', x == x' -> B x = B' x') -> (∀ x, B x) = (∀ x, B' x)
This is the first instance I found where it is really handy to have this feature.
I think this would be a super clean solution, but it would require a big rewrite in the code base.
Another problem is that the actual semantics that Agda has for this kind of construction is not clear to me.
For instance, sometimes Agda reports that the type of an expression is (Set omega).
An easier to implement hack is to support "axiom templates".
We create instances of hipext "on-demand" for different universe levels.
This is essentially what Coq does, since the universe levels are implicit in Coq.
This is not as clean as the Agda approach, but it is much easier to implement.
A super dirty trick is to include some instances of hpiext for commonly used universes
(e.g., Type and (Type 1)).
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 12:10:34 -08:00
Leonardo de Moura
52ee9b35dd
feat(library/simplifier): add support for simplifying even when heq module is not available
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 11:29:36 -08:00
Leonardo de Moura
fafaa7e78e
fix(library/simplifier): remove hack for handling some constants that expect an argument of type TypeU, the new approach is general
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 10:10:57 -08:00
Leonardo de Moura
89bb5fbf19
chore(library/simplifier): fix style
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-26 00:36:17 -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
6bc1537e25
feat(frontends/lean/parser): allow the user to write (Type) without providing a level
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-25 20:17:36 -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
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
df3129e80d
fix(library/hop_match): typo
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-25 10:08:53 -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
2bb33c55fe
feat(builtin/kernel): add more theorems useful for simplification
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-24 18:52:50 -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
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
009217b499
feat(builtin/hep): replace hallext axiom with theorem
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-24 17:09:20 -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
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
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
6cb4d165c9
feat(builtin/kernel): dependent version of axiom of choice
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 11:04:27 -08:00
Leonardo de Moura
88b6778a1f
fix(emacs): syntax highlight
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 09:44:12 -08:00
Leonardo de Moura
66553268d0
feat(builtin/kernel): add skolem_th, we need it to justify skolemization preprocessing step
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 09:41:07 -08:00
Leonardo de Moura
d9b5ebc738
refactor(builtin/kernel): cleanup Hilbert operator definition
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 09:18:40 -08:00
Leonardo de Moura
bcf60db23b
fix(builtin/kernel): Hilbert operator only for non-empty types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 08:52:31 -08:00
Leonardo de Moura
94a3136904
feat(builtin/kernel): add Hilbert's operator, and derive axiom of choice using it
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-22 08:21:11 -08:00
Leonardo de Moura
425d31f513
chore(library/simplifier): fix style warning
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 21:45:55 -08:00
Leonardo de Moura
cca15f1390
feat(library/simplifier): congruence theorem compilation
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 21:16:23 -08:00
Leonardo de Moura
029d74ec11
chore(kernel): remove comment, we decided to have Eta as a simplification rule
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 14:35:05 -08:00
Leonardo de Moura
95b6e61738
feat(kernel/max_sharing): check for imminent stack overflows and interruptions in the expression sharing maximizer
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 14:33:49 -08:00
Leonardo de Moura
2089b85532
refactor(kernel/instantiate): remove code duplication
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 14:30:38 -08:00
Leonardo de Moura
7299b2d5d6
chore(kernel): remove dead file
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 14:21:13 -08:00
Leonardo de Moura
fbaf6e887f
refactor(builtin/kernel): put the congruence theorems in a format that is easier for the simplifier to process
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-21 14:03:51 -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
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
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
217e56ea03
feat(kernel/expr): make sure semantic attachments are smaller than other kinds of expression
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 14:10:44 -08:00
Leonardo de Moura
abfeacb8f0
fix(tests/library/expr_lt): adjust is_lt unit tests to reflect recent modifications
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:44:44 -08:00
Leonardo de Moura
56f5657ee7
fix(library/simplifier): ordered rewriting
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:13:16 -08:00
Leonardo de Moura
5060bdbf14
fix(kernel/expr): compilation warning
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:12:49 -08:00
Leonardo de Moura
6a63ef3bc5
feat(library/expr_lt): make sure the total order on terms is monotonic
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:07:18 -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
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
8e90d17a0b
fix(library/hop_match): style
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 23:28:12 -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
08053c1172
feat(library/hop_match): make the higher order pattern matcher slightly stronger
...
It now can handle (?m t) where t is not a locally bound variable, but ?m and all free variables in t are assigned.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 20:35:50 -08:00
Leonardo de Moura
90ffb9d5ec
fix(frontends/lean/pp): bug in pp_abstraction_core
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 19:47:40 -08:00
Leonardo de Moura
6db10c577b
feat(builtin/kernel): add proof irrelevance axiom
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 12:20:09 -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
3bbadddc94
chore(library/simplifier): cleanup and add comments
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 10:54:09 -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
475df3d94e
chore(builtin/kernel): add theorem for rewriter/simplifier
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 10:34:18 -08:00
Leonardo de Moura
e512241c8f
fix(emacs): missing keyword
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 10:32:45 -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
2753a0ffc0
fix(builtin/kernel): add ascii notation for transitivity
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-18 20:56:35 -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
466285c577
refactor(library/simplifier): rewriter_rule_set
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-18 17:26:01 -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
eae79877ae
feat(library/simplifier): add rewrite_rule_set
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-18 12:50:46 -08:00
Leonardo de Moura
27ab49ae9d
feat(library/simplifier): bottom-up simplifier skeleton
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-18 12:49:41 -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
534838a36c
chore(build): update automatically generated files
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 18:30:45 -08:00
Leonardo de Moura
d711ca4d1b
feat(builtin/heq): add heq C++/Lean interface
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 18:30:21 -08:00
Leonardo de Moura
20c8b91d07
feat(builtin/if_then_else): add more theorems for rewriting
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 18:11:23 -08:00
Leonardo de Moura
2434024272
fix(library/rewriter): warning in release mode
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 15:46:49 -08:00
Leonardo de Moura
ba88a3b05a
chore(builtin/heq): remove unnecessary import
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 15:40:56 -08:00
Leonardo de Moura
70828af6db
refactor(builtin/heq): cleanup universes
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 14:52:09 -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
0660cdbdb7
feat(builtin/cast): use heq in the cast library
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 14:31:45 -08:00
Leonardo de Moura
52756c50fc
fix(builtin/heq): extensionality axioms
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 12:56:36 -08:00
Leonardo de Moura
64795c6c42
feat(builtin): add heterogeneous equality theory
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 12:32:49 -08:00
Leonardo de Moura
baed98d5be
chore(builtin/kernel): adjust emacs mode and fix typo
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-17 10:14:57 -08:00
Leonardo de Moura
5bee259a00
refactor(kernel): remove unnecessary universe
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 18:06:25 -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
1da4294793
refactor(builtin): more theorems, fix iff notation
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 09:26:50 -08:00
Leonardo de Moura
398d83b6d5
chore(builtin/Nat): use iff
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 02:06:53 -08:00
Leonardo de Moura
4dc98bc73b
refactor(builtin/kernel): use iff instead of = for Booleans
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 02:05:09 -08:00
Leonardo de Moura
d063828ff9
feat(library/kernel_bindings): expose abst_name, abst_domain and abst_body in the Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 00:03:16 -08:00
Leonardo de Moura
8d73fb5699
fix(library/hop_match): Lua bindings gotcha
...
See http://www.luafaq.org/gotchas.html#T6.4
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 23:51:26 -08:00
Leonardo de Moura
14c6218bdc
chore(kernel): file name convention
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 20:06:29 -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
7fb0aa4800
chore(kernel/expr): remove dead code
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 17:24:31 -08:00
Leonardo de Moura
438fa8251b
test(kernel/expr): check if the serializer works for metavariables
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 17:15:56 -08:00
Leonardo de Moura
5058e403b5
test(kernel/expr): check if the serializer works for applications with many argumets
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 17:09:46 -08:00
Leonardo de Moura
c096eec1d6
chore(kernel/expr): remove dead code
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 17:09:04 -08:00
Leonardo de Moura
8c2f78a756
feat(builtin): minimize use of heterogenous equality in the kernel, add simpler version of congruence theorems for non-dependent types
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 16:34:23 -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
1176093afa
refactor(library/simplifier): simplifier should only use homogeneous equalities
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 14:58:32 -08:00
Leonardo de Moura
f177c8d1ec
fix(library/elaborator): missing condition
...
The elaborator was failing in the following higher-order constraint
ctx |- (?M a) = (?M b)
This constraint has solution, but the missing condition was making the elaborator to reduce this problem to
ctx |- a = b
That does not have a solution.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 14:11:36 -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
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
83efa644d1
fix(frontends/lean/parser): uninitialized var error reported by valgrind
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 08:43:43 -08:00
Leonardo de Moura
28eb980484
fix(build): C++ module dependency problem, and style
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-14 18:30:31 -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
07059b0531
feat(library): add if_then_else Lean/C++ interface
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-14 16:10:49 -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
acfb11e290
fix(kernel/instantiate): relax apply_beta pre-condition
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-14 14:36:51 -08:00
Leonardo de Moura
a968a43487
fix(kernel/free_vars): make sure has_free_var does not return incorrect result due to arithmetic overflows
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-14 14:36:14 -08:00
Leonardo de Moura
f8eaae7218
feat(builtin/kernel): add new useful theorems for the simplifier
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-13 18:21:22 -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
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
e6c322d97f
feat(kernel/free_vars): make free_vars module functions more robust
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 17:44:28 -08:00
Leonardo de Moura
29fec3fecc
fix(builtin/util): bug incorrect encoding of \t and \n in regular expression, and missing local
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 17:40:41 -08:00
Leonardo de Moura
915644f3b3
fix(util/debug): avoid infinite loop when Ctrl-D is pressed after an assertion violation
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 17:20:35 -08:00
Leonardo de Moura
5d9a95addd
refactor(kernel/free_vars): replace max_free_var with relaxed free_var_range
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 17:06:57 -08:00
Leonardo de Moura
582569b793
feat(frontends/lean): allow the user to set the trust_imported flag when creating environments using Lua
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 16:46:53 -08:00
Leonardo de Moura
4d9eb4ac6c
feat(kernel): add max_free_var function
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-12 16:45:34 -08:00
Leonardo de Moura
6508e63a17
feat(builtin/macros): add assume/take macros for making proof scripts more readable
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 18:36:37 -08:00
Leonardo de Moura
781720a26a
feat(builtin/kernel): add left_comm theorem
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 18:08:08 -08:00
Leonardo de Moura
a1a467a65f
refactor(builtin): move congruence theorems to kernel/if_then_else modules
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 13:48:28 -08:00
Leonardo de Moura
a0a92f11b7
feat(builtin/congr): add congruence theorems for contextual simplification
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 13:37:36 -08:00
Leonardo de Moura
53537d0684
feat(builtin/kernel): 'implication' simplification theorems
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 13:35:20 -08:00
Leonardo de Moura
50f281b430
feat(builtin/kernel): add eqf_intro and eqf_elim theorems
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 11:13:54 -08:00
Leonardo de Moura
4057f0d2fe
feat(emacs): minor improvements to emacs mode
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-11 11:13:20 -08:00
Leonardo de Moura
745c702ffb
fix(build): dependency problem on some platforms
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-10 19:06:15 -08:00
Leonardo de Moura
d4a7d796a5
feat(builtin): prove strong induction theorem, add < theorems
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-10 18:46:33 -08:00
Leonardo de Moura
5fb718c03a
fix(build): broken dependencies between lean executable and .olean, *_decls.cpp and *_decls.h files
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-10 10:58:35 -08:00
Leonardo de Moura
9e8b083673
feat(emacs): more highlighting
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 20:44:01 -08:00
Leonardo de Moura
3008cad151
feat(emacs): highlight tactics
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 20:10:57 -08:00
Leonardo de Moura
2cf73fc4d2
feat(emacs): useful abbreviations
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 19:57:00 -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
8c41b4e899
feat(build): run tests using -t
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 14:12:32 -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
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
dff0b9011b
chore(builtin/cast): cleanup
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 12:06:22 -08:00
Leonardo de Moura
3e18cdfeec
feat(util/format): do not use colors by default
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 11:56:58 -08:00
Leonardo de Moura
6fe362ef07
feat(emacs): include lean-mode Emacs files in the distribution
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 11:50:07 -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
87b238efcd
chore(builtin/kernel): cleanup
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 09:00:05 -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
25086947fa
fix(builtin/kernel): incorrect comment
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 19:14:11 -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
8e9d88c2cf
refactor(builtin/kernel): prove iff::intro, and add a new name for it boolext (Boolean extensionality)
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 18:31:45 -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
9c8026b86e
refactor(builtin/macros): remove 'take', 'discharge' and 'instantiate' macros
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 16:58:01 -08:00
Leonardo de Moura
bdec4c8799
refactor(builtin/Nat): mark constants as opaque
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 16:53:08 -08:00
Leonardo de Moura
2e3b92ef36
refactor(builtin/kernel): cleanup
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 16:52:43 -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
57640ecf19
fix(library/elaborator): array bounds
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 13:18:49 -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
cfe576f551
fix(library/elaborator): bug in the elaborator
...
The elaborator was not handling correctly constraints of the form
ctx |- ?m << (Pi x : A, B)
and
ctx |- (Pi x : A, B) << ?m
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 12:10:50 -08:00
Leonardo de Moura
dd6c13abb0
fix(util/buffer): warning produced by clang++
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 11:27:11 -08:00
Leonardo de Moura
85de05e5cf
chore(kernel/unification_constraint): update max_constraint comment to reflect its new semantics
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-08 01:09:47 -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
e12d6e44cd
fix(util/name): bug in Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 17:52:51 -08:00
Leonardo de Moura
8ce6266e6b
feat(library/kernel_bindings): add new predicates for kernel objects in the Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 17:36:54 -08:00
Leonardo de Moura
6f4ca7bd2a
feat(frontends/lean): expose is_explicit function in the Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 17:36:27 -08:00
Leonardo de Moura
4fdc0406be
feat(util/name): additional methods to name Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 17:35:34 -08:00
Leonardo de Moura
248d55d454
chore(util/script_state): remove dead code
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 16:59:50 -08:00
Leonardo de Moura
2cd2527d9f
refactor(shell): move read-eval-loop script to repl.lua
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 16:56:22 -08:00
Leonardo de Moura
0bc2c51c9c
fix(build): put back the dependency on lean executable for .olean files
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 16:13:58 -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
95515ca5df
chore(*): fix warnings produced by clang++
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 15:39:49 -08:00
Leonardo de Moura
a3af87f8d3
chore(frontends/lean/frontend): remove dead code
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 15:28:21 -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
fb73514913
fix(frontends/lean/parser): parser aborted if the scanner throws an exception in the first call to scan(); position information was being shown twice for scanner exceptions
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 15:04:30 -08:00
Leonardo de Moura
f12a76a5cd
test(frontends/lean/scanner): missing tests
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 15:03:46 -08:00
Leonardo de Moura
c7338a8eab
chore(frontends/lean/scanner): remove dead code
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 14:37:28 -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
f67eab000b
fix(util/serializer): nontermination on corrupted files
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 14:21:54 -08:00
Leonardo de Moura
d5ddb186d9
feat(library/kernel_bindings): add load method to Lua API
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 14:21:24 -08:00
Leonardo de Moura
6077dc61b7
feat(builtin): remove lean executable as a dependency for builtin .lean files
...
Otherwise, we have to rebuild all .lean files whenever we change the executable.
This commit also adds a test for each .lean file.
This is useful for increasing coverage and having a log on how long does it take to process these files.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 13:53:30 -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
0bdecb6aa4
style(builtin/Nat): name convention
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-07 00:05:51 -08:00
Leonardo de Moura
c5d13abd6f
refactor(builtin/Nat): rename destruct to discriminate
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 23:05:27 -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
4424a314e0
feat(kernel): add get_universe_distance method
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 17:13:13 -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
b5a30855f8
feat(kernel/universe_constraints): add new class for managing universe constraints
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 15:01:28 -08:00
Leonardo de Moura
68832dc6f2
fix(builtin/macros): comments
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 12:07:13 -08:00
Leonardo de Moura
929a536e2f
fix(builtin/README): update documentation
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 12:03:11 -08:00
Leonardo de Moura
62bb2ab2f9
fix(builtin/Nat): name convention
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 11:41:14 -08:00
Leonardo de Moura
645e748302
feat(frontends/lean): add 'using' command
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-06 11:41:14 -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
771b099c0c
fix(frontends/lean): must invoke lua GC before closing a scope, reason: we may still have references to the current environment inside of the Lua state object
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-05 16:38:29 -08:00
Leonardo de Moura
9d6bd7501c
feat(doc/lean): include lean documentation scripts in the test set
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-05 13:16:47 -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
f5cc2458a9
fix(frontends/lean/parser_calc): missing save calls
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-03 18:26:30 -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
66ec538c63
doc(doc/lean/calc.md): calculational proof documentation
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-03 11:52:21 -08:00
Leonardo de Moura
5b5cebe750
refactor(builtin/Nat): use obtain-from instead of ExistsElim, and use more user-friendly argument order for Induction
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-03 10:33:57 -08:00
Leonardo de Moura
9f3706e365
feat(builtin/macros): add obtain-from macro for ExistsElim
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-03 10:32:49 -08:00
Leonardo de Moura
d7efdff83d
feat(builtin/Nat): add more leq theorems
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 22:48:10 -08:00
Leonardo de Moura
cf35e7bed7
feat(frontends/lean): add support for disequalities in calculational proofs
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 22:47:45 -08:00
Leonardo de Moura
6329d1828d
feat(frontends/lean): reuse name expression
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 20:08:21 -08:00
Leonardo de Moura
92c7145d7f
feat(kernel/expr): maximize sharing before serializing
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 20:03:42 -08:00
Leonardo de Moura
2d5800ace4
feat(builtin/Nat): leq axiom, and some theorems
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 18:24:32 -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
ecc5d1bc3a
refactor(kernel): move printer to library, cleanup io_state interface
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 13:37:50 -08:00
Leonardo de Moura
0592261847
refactor(kernel/io_state): move io_state_stream to library
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 13:14:21 -08:00
Leonardo de Moura
b81d3309b9
fix(kernel): remove ios hack
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 13:03:25 -08:00
Leonardo de Moura
9c5fa72f56
fix(library/elaborator): avoid unused variable warning in release build
...
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 12:40:41 -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