Tue, 06 Nov 2012 11:24:48 +0100 | blanchet | avoid double "Trueprop"s | changeset | files |
Tue, 06 Nov 2012 11:20:56 +0100 | blanchet | use original formulas for hypotheses and conclusion to avoid mismatches | changeset | files |
Tue, 06 Nov 2012 11:20:56 +0100 | blanchet | track formula roles in proofs and use that to determine whether the conjecture should be negated or not | changeset | files |