Leonardo de Moura
69e72c278d
feat(kernel): add proof irrelevance for classes
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We can use this feature to implement proof irrelevance for Identity types.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-16 15:30:32 -07:00
Leonardo de Moura
862c5e354d
feat(kernel/expr): attach auxiliary name (for pretty printing) into local constants
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-16 13:08:09 -07:00
Leonardo de Moura
40b3129e7b
refactor(kernel): improve names
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-16 11:28:05 -07:00
Leonardo de Moura
3a19d9fee1
refactor(kernel): revise macro_definition API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-15 13:53:10 -07:00
Leonardo de Moura
08ac9c1f05
feat(kernel): add is_def_eq predicate in the extension_context API
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-15 13:53:10 -07:00
Leonardo de Moura
7b15e558a2
refactor(kernel/converter): implement eta in whnf instead of is_def_eq.
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Without cumulativity, we do not have problems with Eta at whnf anymore.
When we had cumulativity, we could not not simply reduce
(fun x : A, f x) ==> f
This step is correct only if domain(f) was definitionally equal to f.
Here is a problematic example for systems with cumulativity
Given, f : Type.{2} -> Bool
(fun x : Type.{1}, f x)
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-12 17:49:53 -07:00
Leonardo de Moura
ff9004dae2
refactor(kernel): add level normalizer, is_equivalent predicate, switch to is_equivalent in the type checker, fix bugs in is_lt predicate
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-11 18:05:02 -07:00
Leonardo de Moura
7176181b42
refactor(kernel/converter): cleanup and remove universe cumulativity support
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:43:11 -07:00
Leonardo de Moura
9d96f24766
refactor(kernel): remove convertability constraints
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-09 20:25:27 -07:00
Leonardo de Moura
6fb7039746
refactor(kernel): use structural hashing in type_checker and converter
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-05-01 10:41:53 -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
