Mon, 20 Mar 2000 18:43:05 +0100 wenzelm case_tac, induct_tac;
Mon, 20 Mar 2000 18:42:50 +0100 wenzelm tactic emulation;
Mon, 20 Mar 2000 18:25:35 +0100 paulson tidied
Mon, 20 Mar 2000 18:24:11 +0100 paulson the perm_rules variable is no longer needed
Mon, 20 Mar 2000 12:54:31 +0100 paulson tidied
Mon, 20 Mar 2000 11:15:28 +0100 paulson replaced best_tac by force_tac, allowing some arithmetic reasoning
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