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fixes to term-graph, add proof-checker routines for PR_BIND, remove orphaned file

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-06-27 17:04:47 -07:00
parent 91ef84b8c9
commit 7844476a7d
7 changed files with 153 additions and 79 deletions
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13
src/ast/proofs/proof_checker.cpp
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@ -335,6 +335,12 @@ bool proof_checker::check1_basic(proof* p, expr_ref_vector& side_conditions) {
return false;
}
case PR_QUANT_INTRO: {
if (match_proof(p, p1) &&
match_fact(p, fact) &&
match_fact(p1.get(), fml) &&
(is_lambda(fact) || is_lambda(fml)))
return true;
if (match_proof(p, p1) &&
match_fact(p, fact) &&
match_fact(p1.get(), fml) &&
@ -361,6 +367,13 @@ bool proof_checker::check1_basic(proof* p, expr_ref_vector& side_conditions) {
UNREACHABLE();
return false;
}
case PR_BIND:
// it is a lambda expression returning a proof object.
if (!is_lambda(to_app(p)->get_arg(0)))
return false;
// check that body is a proof object.
return true;
case PR_DISTRIBUTIVITY: {
if (match_fact(p, fact) &&
match_proof(p) &&