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fix(library/blast/subst_action): do not apply subst to (H : a = a), let the discard_action to get rid of it

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Leonardo de Moura 2015-11-22 15:37:32 -08:00
parent 0537ef2bd9
commit f326e731a0
1 changed files with 2 additions and 0 deletions
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2
src/library/blast/subst_action.cpp
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@ -51,6 +51,8 @@ bool subst_core(hypothesis_idx hidx) {
expr type = h.get_type(); expr type = h.get_type();
expr lhs, rhs; expr lhs, rhs;
lean_verify(is_eq(type, lhs, rhs)); lean_verify(is_eq(type, lhs, rhs));
if (is_def_eq(lhs, rhs))
return false;
lean_assert(is_href(rhs)); lean_assert(is_href(rhs));
try { try {
hypothesis_idx_buffer_set to_revert; hypothesis_idx_buffer_set to_revert;