Mon, 21 Nov 1994 14:11:21 +0100 clasohm replaced 'val ... = result();' by 'qed "...";'
Mon, 21 Nov 1994 14:06:59 +0100 lcp ZF/indrule/mutual_ind_tac: backtracks using DEPTH_SOLVE to be certain of
Mon, 21 Nov 1994 13:47:00 +0100 lcp ZF/EquivClass/congruent_commuteI: uncommented and simplified proof
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