src/ZF/Zorn.thy
2015-12-30 wenzelm clarified syntax;
2015-12-07 wenzelm isabelle update_cartouches -c -t;
2015-07-23 wenzelm isabelle update_cartouches;
2015-03-23 wenzelm prefer local fixes;
2014-11-02 wenzelm modernized header;
2012-03-06 paulson mathematical symbols instead of ASCII
2011-11-20 wenzelm eliminated obsolete "standard";
2009-10-17 wenzelm eliminated hard tabulators, guessing at each author's individual tab-width;
2008-07-29 ballarin Zorn's Lemma for partial orders.
2008-02-11 krauss Made theory names in ZF disjoint from HOL theory names to allow loading both developments
2007-10-07 wenzelm modernized specifications;
2005-06-17 haftmann migrated theory headers to new format
2004-04-22 wenzelm constdefs: proper order;
2003-08-27 skalberg Extended the notion of letter and digit, such that now one may use greek,
2003-01-23 paulson tidying (by script)
2002-09-03 paulson tidied
2002-07-14 paulson improved presentation markup
2002-07-02 paulson Tidying and introduction of various new theorems
2002-05-23 paulson new definition of "apply" and new simprule "beta_if"
2002-05-10 paulson converted the AC branch to Isar
1998-12-28 paulson new inductive, datatype and primrec packages, etc.
1996-02-06 clasohm expanded tabs
1995-12-09 clasohm removed quotes from consts and syntax sections
1995-06-22 clasohm removed \...\ inside strings
1994-12-19 lcp removed quotes around "Inductive"
1994-11-28 lcp replaced "rules" by "defs"
1994-08-25 lcp ZF/Inductive.thy,.ML: renamed from "inductive" to allow re-building without
1994-08-12 lcp installation of new inductive/datatype sections
1994-07-26 lcp Axiom of choice, cardinality results, etc.
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