src/ZF/Induct/Binary_Trees.thy
Tue, 13 Mar 2012 14:44:16 +0100 tuned proofs;
Tue, 06 Mar 2012 16:46:27 +0000 mathematical symbols for Isabelle/ZF example theories
Sat, 13 Mar 2010 16:44:12 +0100 removed old CVS Ids;
Sun, 07 Oct 2007 21:19:31 +0200 modernized specifications;
Mon, 11 Sep 2006 21:35:19 +0200 induct method: renamed 'fixing' to 'arbitrary';
Thu, 15 Dec 2005 19:42:03 +0100 improved proofs;
Fri, 17 Jun 2005 16:12:49 +0200 migrated theory headers to new format
Wed, 20 Aug 2003 11:12:48 +0200 new example
Wed, 14 Nov 2001 23:22:43 +0100 converted datatype examples moved from ZF/ex to ZF/Induct;