2010-05-05 ago farewell to old-style mem infixes -- type inference in situations with mem_int and mem_string should provide enough information to resolve the type of (op =)
2010-03-07 ago modernized structure Object_Logic;
2010-02-19 ago moved remaning class operations from Algebras.thy to Groups.thy
2010-01-28 ago new theory Algebras.thy for generic algebraic structures
2010-01-22 ago HOLogic.strip_psplits: types are ordered after syntactic appearance, not after corresponding de-Bruin index (closer correspondence to similar strip operations)
2009-10-27 ago eliminated some old folds;
2009-09-23 ago Code_Eval(uation)
2009-08-28 ago fixed HOLogic.stringT
2009-07-30 ago path-sensitive tuple combinators carry a "p"(ath) prefix; combinators for standard right-fold tuples
2009-07-30 ago termT and term_of_const
2009-07-29 ago cleaned up abstract tuple operations and named them consistently
2009-07-28 ago Set.UNIV and Set.empty are mere abbreviations for top and bot
2009-06-21 ago more appropriate mk_typerep
2009-06-05 ago added mk_valtermify_app and mk_random
2009-06-04 ago insert now qualified and with authentic syntax
2009-05-19 ago String.literal replaces message_string, code_numeral replaces (code_)index
2009-05-15 ago combinators for single-threaded operations
2009-05-13 ago added abstract operations for typerep/term_of
2009-05-06 ago refined HOL string theories and corresponding ML fragments
2009-03-11 ago fixed typo
2009-03-11 ago HOLogic.mk_set, HOLogic.dest_set
2009-03-05 ago set operations Int, Un, INTER, UNION, Inter, Union, empty, UNIV are now proper qualified constants with authentic syntax
2008-12-03 ago made repository layout more coherent with logical distribution structure; stripped some $Id$s