src/ZF/Sum.thy
2012-03-15 paulson replacing ":" by "\<in>"
2012-03-06 paulson Using mathematical notation for <-> and cardinal arithmetic
2012-03-06 paulson mathematical symbols instead of ASCII
2011-11-20 wenzelm eliminated obsolete "standard";
2011-02-18 wenzelm more precise headers;
2010-08-18 haftmann deglobalization
2010-03-01 haftmann replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
2009-10-17 wenzelm eliminated hard tabulators, guessing at each author's individual tab-width;
2007-10-07 wenzelm modernized specifications;
2005-06-17 haftmann migrated theory headers to new format
2003-02-19 paulson fixed anomalies in the installed classical rules
2002-07-14 paulson improved presentation markup
2002-06-28 paulson new theorems, tidying
2002-06-23 paulson conversion of Sum, pair to Isar script
2002-06-18 paulson tidying
1998-08-17 paulson Yet more removal of "goal" commands, especially "goal ZF.thy", so ZF.thy
1997-10-20 wenzelm local;
1997-10-17 wenzelm global;
1997-01-03 paulson Implicit simpsets and clasets for FOL and ZF
1996-02-06 clasohm expanded tabs
1995-12-09 clasohm removed quotes from consts and syntax sections
1995-05-04 lcp case is defined using pattern-matching
1994-11-28 lcp replaced "rules" by "defs"
1993-11-16 clasohm made pseudo theories for all ML files;
1993-09-16 clasohm Initial revision
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