src/HOL/ZF/Zet.thy
Thu, 22 Oct 2009 09:27:48 +0200 nipkow inv_onto -> inv_into
Sun, 18 Oct 2009 12:07:25 +0200 nipkow Inv -> inv_onto, inv abbr. inv_onto UNIV.
Fri, 11 May 2007 00:43:45 +0200 wenzelm tuned proofs;
Tue, 07 Mar 2006 16:03:31 +0100 obua Added HOL-ZF to Isabelle.
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