2010-07-26 wenzelm 2010-07-26 modernized/unified some specifications;
2010-03-03 wenzelm 2010-03-03 cleanup type translations;
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;
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
2004-05-21 wenzelm 2004-05-21 use plain SOME;
2003-08-28 skalberg 2003-08-28 Extended the notion of letter and digit, such that now one may use greek, gothic, euler, or calligraphic letters as normal letters.
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;