src/ZF/ex/Ring.thy
Thu, 23 Jul 2015 14:25:05 +0200 wenzelm isabelle update_cartouches;
Sun, 02 Nov 2014 16:39:54 +0100 wenzelm modernized header;
Tue, 06 Mar 2012 16:46:27 +0000 paulson mathematical symbols for Isabelle/ZF example theories
Tue, 06 Mar 2012 16:06:52 +0000 paulson Using mathematical notation for <-> and cardinal arithmetic
Wed, 12 Jan 2011 15:38:57 +0100 wenzelm eliminated global prems;
Thu, 11 Dec 2008 18:30:26 +0100 ballarin Conversion of HOL-Main and ZF to new locales.
Wed, 03 Dec 2008 15:58:44 +0100 haftmann made repository layout more coherent with logical distribution structure; stripped some $Id$s
Fri, 17 Nov 2006 02:20:03 +0100 wenzelm more robust syntax for definition/abbreviation/notation;
Tue, 07 Nov 2006 19:40:13 +0100 wenzelm tuned specifications;
Mon, 05 Sep 2005 16:47:28 +0200 wenzelm removed duplicate theorems;
Fri, 17 Jun 2005 16:12:49 +0200 haftmann migrated theory headers to new format
Tue, 08 Jun 2004 16:22:30 +0200 paulson Groups, Rings and supporting lemmas
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