Fri, 23 Dec 1994 16:28:26 +0100 lcp inj_apply_equality: new
Fri, 23 Dec 1994 16:27:45 +0100 lcp Added Krzysztof's theorems subst_elem, not_emptyI, not_emptyE
Fri, 23 Dec 1994 16:27:07 +0100 lcp empty_fun: generalized from -> to Pi
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