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
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lean	feat(library/simplifier): memoize intermediate results	2014-01-20 17:03:44 -08:00
lua	fix(library/expr_lt): use expression depth instead of size to obtain a monotonic total order on terms	2014-01-20 17:40:49 -08:00