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4 commits

Author SHA1 Message Date
Leonardo de Moura
5f3b9dbbbd fix(library/fo_unify): unify (?f ?x) with (g a b) 
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 
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) 
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 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-12-03 12:21:21 -08:00