2011-11-20 wenzelm 2011-11-20 eliminated obsolete "standard";
2010-08-18 haftmann 2010-08-18 robustified proof
2010-07-26 wenzelm 2010-07-26 modernized/unified some specifications;
2010-03-01 haftmann 2010-03-01 replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
2010-02-10 wenzelm 2010-02-10 removed obsolete CVS Ids;
2010-02-10 wenzelm 2010-02-10 modernized syntax translations, using mostly abbreviation/notation; minor tuning;
2009-10-17 wenzelm 2009-10-17 eliminated hard tabulators, guessing at each author's individual tab-width; tuned headers;
2007-09-30 wenzelm 2007-09-30 avoid internal names;
2007-07-29 wenzelm 2007-07-29 replaced make_imp by rev_mp;
2007-07-11 berghofe 2007-07-11 Renamed inductive2 to inductive.
2006-12-11 berghofe 2006-12-11 Adapted to new inductive definition package.
2005-12-21 paulson 2005-12-21 removed or modified some instances of [iff]
2005-06-17 haftmann 2005-06-17 migrated theory headers to new format
2004-06-21 kleing 2004-06-21 Merged in license change from Isabelle2004
2004-05-03 schirmer 2004-05-03 reimplementation of HOL records; only one type is created for each record extension, instead of one type for each field. See NEWS.
2004-04-26 wenzelm 2004-04-26 *** empty log message ***
2002-10-31 schirmer 2002-10-31 "Definite Assignment Analysis" included, with proof of correctness. Large adjustments of type safety proof and soundness proof of the axiomatic semantics were necessary. Completeness proof of the loop rule of the axiomatic semantic was altered. So the additional polymorphic variants of some rules could be removed.
2002-01-28 wenzelm 2002-01-28 GPLed;
2002-01-28 wenzelm 2002-01-28 tuned header;
2002-01-28 schirmer 2002-01-28 Isabelle/Bali sources;