Mon, 12 Dec 1994 10:26:05 +0100 wenzelm added print_theory that prints stored thms;
Fri, 09 Dec 1994 16:44:31 +0100 wenzelm minor internal changes;
Fri, 09 Dec 1994 16:42:09 +0100 wenzelm improved axioms_of: returns thms as the manual says;
Fri, 09 Dec 1994 13:39:52 +0100 clasohm removed ZF_Lemmas and added qed_goal
Fri, 09 Dec 1994 13:05:03 +0100 clasohm added warning for already stored theorem to store_thm
Thu, 08 Dec 1994 16:42:58 +0100 lcp sum_ss: moved down and added the rewrite rules for "case"
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