2015-10-10 wenzelm 2015-10-10 isabelle update_cartouches;
2014-11-02 wenzelm 2014-11-02 modernized header uniformly as section;
2014-09-21 haftmann 2014-09-21 explicit separation of signed and unsigned numerals using existing lexical categories num and xnum
2014-07-04 haftmann 2014-07-04 reduced name variants for assoc and commute on plus and mult
2014-06-11 Thomas Sewell 2014-06-11 Hypsubst preserves equality hypotheses Fixes included for various theories affected by this change.
2014-06-28 haftmann 2014-06-28 fact consolidation
2014-04-12 nipkow 2014-04-12 made mult_pos_pos a simp rule
2012-10-19 webertj 2012-10-19 Renamed {left,right}_distrib to distrib_{right,left}.
2012-03-02 bulwahn 2012-03-02 adding finiteness of intervals on integer sets; adding another finiteness theorem for multisets
2011-09-06 huffman 2011-09-06 avoid using legacy theorem names
2011-01-13 wenzelm 2011-01-13 eliminated global prems; tuned proofs;
2010-11-28 nipkow 2010-11-28 gave more standard finite set rules simp and intro attribute
2010-08-06 wenzelm 2010-08-06 modernized specifications; tuned headers;
2009-09-01 haftmann 2009-09-01 some reorganization of number theory