src/ZF/upair.thy
2017-04-09 wenzelm 2017-04-09 clarified main ZF.thy / ZFC.thy, and avoid name clash with global HOL/Main.thy;
2016-09-16 wenzelm 2016-09-16 more symbols;
2015-12-07 wenzelm 2015-12-07 isabelle update_cartouches -c -t;
2015-07-23 wenzelm 2015-07-23 isabelle update_cartouches;
2014-11-02 wenzelm 2014-11-02 modernized header;
2014-10-29 wenzelm 2014-10-29 modernized setup;
2012-08-22 wenzelm 2012-08-22 prefer ML_file over old uses;
2012-03-15 wenzelm 2012-03-15 merged
2012-03-15 paulson 2012-03-15 replacing ":" by "\<in>"
2012-03-15 wenzelm 2012-03-15 declare command keywords via theory header, including strict checking outside Pure;
2012-03-06 paulson 2012-03-06 Using mathematical notation for <-> and cardinal arithmetic
2012-03-06 paulson 2012-03-06 mathematical symbols instead of ASCII
2011-11-23 wenzelm 2011-11-23 modernized some old-style infix operations, which were left over from the time of ML proof scripts;
2011-11-20 wenzelm 2011-11-20 eliminated obsolete "standard";
2009-10-17 wenzelm 2009-10-17 eliminated hard tabulators, guessing at each author's individual tab-width; tuned headers;
2007-10-07 wenzelm 2007-10-07 modernized specifications; removed legacy ML bindings;
2005-06-17 haftmann 2005-06-17 migrated theory headers to new format
2004-07-30 wenzelm 2004-07-30 tuned dependencies;
2004-06-08 paulson 2004-06-08 Groups, Rings and supporting lemmas
2003-08-19 paulson 2003-08-19 new case_tac
2003-01-15 paulson 2003-01-15 more new-style theories
2002-08-28 paulson 2002-08-28 various new lemmas for Constructible
2002-07-14 paulson 2002-07-14 Removal of mono.thy
2002-07-14 paulson 2002-07-14 improved presentation markup
2002-06-29 paulson 2002-06-29 conversion of many files to Isar format
2001-10-14 wenzelm 2001-10-14 moved rulify to ObjectLogic;
2000-09-07 wenzelm 2000-09-07 tuned ML code (the_context, bind_thms(s));
2000-08-10 paulson 2000-08-10 installation of cancellation simprocs for the integers
1999-01-27 paulson 1999-01-27 new typechecking solver for the simplifier
1997-10-17 wenzelm 1997-10-17 obselete 'end' hack;
1997-04-02 paulson 1997-04-02 Moved definitions (binary intersection, etc.) from upair.thy back to ZF.thy
1997-01-03 paulson 1997-01-03 Implicit simpsets and clasets for FOL and ZF
1993-11-16 clasohm 1993-11-16 made pseudo theories for all ML files; documented dependencies between all thy and ML files