Tue, 10 Mar 1998 18:32:08 +0100 oheimb added not1_or and if_eq_cancel to simpset()
Tue, 10 Mar 1998 18:31:32 +0100 oheimb new rewrite rules not1_or, not2_or, and if_eq_cancel
Tue, 10 Mar 1998 18:26:27 +0100 oheimb renamed smart_tac to force_tac, slight improvement of force_tac
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