Mon, 21 Nov 1994 14:06:59 +0100 | lcp | ZF/indrule/mutual_ind_tac: backtracks using DEPTH_SOLVE to be certain of | changeset | files |
Mon, 21 Nov 1994 13:47:00 +0100 | lcp | ZF/EquivClass/congruent_commuteI: uncommented and simplified proof | changeset | files |
Mon, 21 Nov 1994 13:09:41 +0100 | lcp | ZF/ZF.ML/UN_iff, INT_iff: added to the signature | changeset | files |