Leonardo de Moura
c843243f64
feat(library/kernel_bindings): add add_decl and type_check functions to Lua API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-08 18:08:32 -07:00
Leonardo de Moura
850ec69538
feat(kernel): add flag for disabling impredicativity of Prop/Bool in the kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-05 14:09:17 -07:00
Soonho Kong
468abb72b8
tests(util/rb_tree): wrap tst6 with #if !defined
2014-05-02 01:39:13 -04:00
Leonardo de Moura
120c24319e
fix(tests/kernel/metavar): typo
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 12:58:09 -07:00
Leonardo de Moura
027614cebb
fix(kernel/metavar): wierd memory leak that only happens when compiling with clang++
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 12:55:55 -07:00
Leonardo de Moura
2b97474958
test(util/rb_tree): reduce test time for rb_tree
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 10:08:18 -07:00
Leonardo de Moura
b0e0e82350
refactor(kernel): separate type_checker and converter
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-30 18:42:01 -07:00
Leonardo de Moura
cd30bb49c1
chore(library/arith): remove unnecessary library
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 16:14:15 -07:00
Leonardo de Moura
49e626a0e0
refactor(kernel/metavar): switch to functional substitution datastructure
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-29 10:22:36 -07:00
Leonardo de Moura
1681dc2389
test(kernel): add new environment tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-28 14:04:05 -07:00
Leonardo de Moura
e769c26800
refactor(kernel): move files that don't need to be in the kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-25 18:30:40 -07:00
Leonardo de Moura
a39a5b4195
refactor(kernel): remove normalizer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-25 12:02:33 -07:00
Leonardo de Moura
508bccb0c5
fix(kernel/max_sharing): add example exposing bug in max_sharing_fn, and fix it
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-24 15:55:48 -07:00
Leonardo de Moura
f99444b130
chore(tests): move max_sharing unit tests to tests/kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-22 16:01:30 -07:00
Leonardo de Moura
9fda7e2529
fix(kernel): incorrect optimization in max_sharing_fn class
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The resultant expression may failed to be fully shared.
Add an example that demonstrates the problem.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-22 15:38:22 -07:00
Leonardo de Moura
3b78af0db5
chore(tests/library): enable old tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-22 12:05:49 -07:00
Leonardo de Moura
984ac03ac7
refactor(kernel): replace kernel object with definition, disable affected files
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-17 16:10:47 -07:00
Leonardo de Moura
3712da0b54
refactor(kernel/instantiate): use get_free_var_range to improve instantiate, remove instantiate_with_closed, fix index overflow bug
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-17 13:12:49 -07:00
Leonardo de Moura
1fd5e9682d
refactor(kernel/free_vars): use get_free_var_range to improve lift_free_vars and lower_free_vars performance
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-17 12:41:06 -07:00
Leonardo de Moura
1fd447b451
chore(util): fix style
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-17 10:54:10 -07:00
Leonardo de Moura
bc8379256a
refactor(kernel): remove pairs from kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-04-17 10:52:07 -07:00
Leonardo de Moura
c78e6787aa
test(util/rb_tree): multi-thread test for rb trees
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-20 10:20:28 -07:00
Leonardo de Moura
3651b4ecd0
refactor(kernel): replace_fn functional object
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:57 -07:00
Leonardo de Moura
eb487e44c1
refactor(kernel): use names instead of unsigned integers to encode level parameters
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:57 -07:00
Leonardo de Moura
aa4a7acccf
feat(kernel/level): is_trivial predicate for level constraints
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:57 -07:00
Leonardo de Moura
41782c0894
test(kernel/metavar): add metavar tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
bf13441bd7
fix(kernel): bugs in justification module, add missing metavar methods, add basic metavar tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
42e253c962
fix(*): style and clang warnings
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
f855dbb7b0
feat(util): add maps based on red-black trees
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
1ab12eb105
refactor(util/splay_map): remove unnecessary operation
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
528ea367ad
feat(util): add red-black trees
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
2a73389ed3
refactor(kernel): justification objects
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
50300126a5
refactor(util/name_generator): make sure there is no risk of overflow, name generators will be extensively used in version 0.2
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
501435f6fc
feat(kernel): add has_local predicate
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
6baa59376c
refactor(kernel): normalizer
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:56 -07:00
Leonardo de Moura
eb046c11fb
refactor(kernel): the type in let-exprs is not optional anymore, if the user does not provide it, we use a metavariable
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:55 -07:00
Leonardo de Moura
3c8ccdd33d
test(util/exception): experiment with exceptions with nested std::function
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:55 -07:00
Leonardo de Moura
737fe6830f
test(tests/kernel): adjust expr tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:55 -07:00
Leonardo de Moura
73c8bf4436
refactor(tests/kernel): move tests to new kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:55 -07:00
Leonardo de Moura
72e1678ad9
refactor(kernel): cleanup instantiate and abstract procedures, implement update procedures
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:55 -07:00
Leonardo de Moura
76b1ddb967
feat(kernel): add difference constraint solver with backtracking support, and justification generation, this solver will be used to check the satisfiability of universe level constraints
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:54 -07:00
Leonardo de Moura
9f93b5d97e
feat(kernel/level): new universe level datastructure for universe level polymorphism
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-03-18 10:27:54 -07:00
Leonardo de Moura
1739b5c153
fix(kernel/type_checker): caching bug
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-12 10:43:01 -08:00
Leonardo de Moura
6d7ec9d7b6
refactor(kernel): add heterogeneous equality back to expr
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The main motivation is that we will be able to move equalities between universes.
For example, suppose we have
A : (Type i)
B : (Type i)
H : @eq (Type j) A B
where j > i
We didn't find any trick for deducing (@eq (Type i) A B) from H.
Before this commit, heterogeneous equality as a constant with type
heq : {A B : (Type U)} : A -> B -> Bool
So, from H, we would only be able to deduce
(@heq (Type j) (Type j) A B)
Not being able to move the equality back to a smaller universe is
problematic in several cases. I list some instances in the end of the commit message.
With this commit, Heterogeneous equality is a special kind of expression.
It is not a constant anymore. From H, we can deduce
H1 : A == B
That is, we are essentially "erasing" the universes when we move to heterogeneous equality.
Now, since A and B have (Type i), we can deduce (@eq (Type i) A B) from H1. The proof term is
(to_eq (Type i) A B (to_heq (Type j) A B H)) : (@eq (Type i) A B)
So, it remains to explain why we need this feature.
For example, suppose we want to state the Pi extensionality axiom.
axiom hpiext {A A' : (Type U)} {B : A → (Type U)} {B' : A' → (Type U)} :
A = A' → (∀ x x', x == x' → B x == B' x') → (∀ x, B x) == (∀ x, B' x)
This axiom produces an "inflated" equality at (Type U) when we treat heterogeneous
equality as a constant. The conclusion
(∀ x, B x) == (∀ x, B' x)
is syntax sugar for
(@heq (Type U) (Type U) (∀ x : A, B x) (∀ x : A', B' x))
Even if A, A', B, B' live in a much smaller universe.
As I described above, it doesn't seem to be a way to move this equality back to a smaller universe.
So, if we wanted to keep the heterogeneous equality as a constant, it seems we would
have to support axiom schemas. That is, hpiext would be parametrized by the universes where
A, A', B and B'. Another possibility would be to have universe polymorphism like Agda.
None of the solutions seem attractive.
So, we decided to have heterogeneous equality as a special kind of expression.
And use the trick above to move equalities back to the right universe.
BTW, the parser is not creating the new heterogeneous equalities yet.
Moreover, kernel.lean still contains a constant name heq2 that is the heterogeneous
equality as a constant.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-07 10:28:10 -08:00
Leonardo de Moura
8eec289ce1
feat(kernel): add dependent pairs
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-03 16:52:49 -08:00
Leonardo de Moura
c56df132b8
refactor(kernel): remove semantic attachments from the kernel
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-02-02 14:48:27 -08:00
Leonardo de Moura
9fb3ccb4c0
feat(library/simplifier): support for dependent simplification in lambda expressions
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-25 16:54:42 -08:00
Leonardo de Moura
abfeacb8f0
fix(tests/library/expr_lt): adjust is_lt unit tests to reflect recent modifications
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-20 13:44:44 -08:00
Leonardo de Moura
bbf6e6a256
feat(builtin/kernel): create default rule set in the kernel, and adjust unit tests
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-19 11:24:20 -08:00
Leonardo de Moura
a43020b31b
refactor(kernel): remove heterogeneous equality
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 17:39:12 -08:00