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)
2010-02-23 haftmann 2010-02-23 dropped axclass
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;
2009-03-04 nipkow 2009-03-04 Made Option a separate theory and renamed option_map to
2008-10-07 haftmann 2008-10-07 arbitrary is undefined
2008-07-25 haftmann 2008-07-25 added class preorder
2008-04-07 haftmann 2008-04-07 instantiation replacing primitive instance plus overloaded defs
2007-09-30 wenzelm 2007-09-30 avoid internal names;
2007-07-29 wenzelm 2007-07-29 replaced make_imp by rev_mp;
2006-01-04 nipkow 2006-01-04 Reversed Larry's option/iff change.
2006-01-03 haftmann 2006-01-03 class now an keyword, quoted where necessary
2005-12-21 paulson 2005-12-21 removed or modified some instances of [iff]
2005-10-07 nipkow 2005-10-07 changes due to new neq_simproc in simpdata.ML
2005-09-22 nipkow 2005-09-22 renamed rules to iprover
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
2004-06-16 paulson 2004-06-16 removal of x-symbol syntax <Sigma> for dependent products
2004-04-26 wenzelm 2004-04-26 *** empty log message ***
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.
2002-09-30 berghofe 2002-09-30 Adapted to new simplifier.
2002-02-25 wenzelm 2002-02-25 clarified syntax of ``long'' statements: fixes/assumes/shows;
2002-02-22 schirmer 2002-02-22 Added check for field/method access to operational semantics and proved the acesses valid.
2002-01-28 wenzelm 2002-01-28 tuned;
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;