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
Leonardo de Moura
4dc98bc73b
refactor(builtin/kernel): use iff instead of = for Booleans
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-16 02:05:09 -08:00
Leonardo de Moura
14c6218bdc
chore(kernel): file name convention
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-15 20:06:29 -08:00
Leonardo de Moura
411f14415d
feat(builtin): automatically generate Lean/C++ interface for builtin theories
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 18:09:53 -08:00
Leonardo de Moura
49425f1a5b
feat(builtin/Nat): multiplication axioms and theorems
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-01 21:32:07 -08:00
Leonardo de Moura
1ed4aa391c
fix(library/fo_unify): bug at function that extracts the lhs and rhs of homogeneous/heterogeneous equality
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For homogeneous equality, arg #1 is the Type of the lhs/rhs.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-20 14:14:20 -08:00
Leonardo de Moura
3e1fd06903
refactor(kernel/expr): remove 'null' expression, and operator bool for expression
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After this commit, a value of type 'expr' cannot be a reference to nullptr.
This commit also fixes several bugs due to the use of 'null' expressions.
TODO: do the same for kernel objects, sexprs, etc.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-07 23:21:10 -08:00
Leonardo de Moura
5f3b9dbbbd
fix(library/fo_unify): unify (?f ?x) with (g a b)
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We flat applications. So, (g a b) is actually ((g a) b).
So, we must be able to unify (?f ?x) with (g a b).
Solution:
?g <- (g a)
?x <- b
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-07 10:25:11 -08:00
Leonardo de Moura
c1afefb873
feat(library/fo_unify): unify heterogeneous - homogeneous equality
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-05 19:00:31 -08:00
Leonardo de Moura
ef069e39b0
chore(*): replace to_expr with to_nonnull_expr (when appropriate)
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The goal is to make the Lua API more robust.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-03 12:53:53 -08:00
Leonardo de Moura
8e53643b61
feat(library/fo_unify): first order unification
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-03 12:21:21 -08:00
