Thu, 23 May 1996 15:15:20 +0200 berghofe Removed equalityI from some proofs (because it is now included
Thu, 23 May 1996 14:37:06 +0200 berghofe Replaced fast_tac by Fast_tac (which uses default claset)
Wed, 22 May 1996 18:32:37 +0200 nipkow Added comparison with implicit rule Fun(lift s 0 @ Var 0) -e> s
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