Mon, 12 Nov 2001 20:23:24 +0100 wenzelm proper handling of mutual rules (esp. for sets);
Mon, 12 Nov 2001 20:22:51 +0100 wenzelm lemmas induct_atomize = atomize_conj ...;
Mon, 12 Nov 2001 20:22:23 +0100 wenzelm val local_imp_def = thm "induct_implies_def";
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