src/HOL/Algebra/Group.thy
22 months ago ballarin 2017-08-31 Revert 5a42eddc11c1.
23 months ago haftmann 2017-08-24 swapping of theory dependency yields less pervasive syntax requiring popular symbols \<mu>, \<nu>
23 months ago wenzelm 2017-08-18 session-qualified theory imports: isabelle imports -U -i -d '~~/src/Benchmarks' -a;
2017-03-02 ballarin 2017-03-02 Knaster-Tarski fixed point theorem and Galois Connections.
2016-05-26 wenzelm 2016-05-26 isabelle update_cartouches -c -t;
2015-11-11 Andreas Lochbihler 2015-11-11 add lemmas about monoids and groups
2015-11-04 ballarin 2015-11-04 Qualifiers in locale expressions default to mandatory regardless of the command.
2015-10-10 wenzelm 2015-10-10 prefer symbols;
2015-10-10 wenzelm 2015-10-10 isabelle update_cartouches;
2015-09-13 wenzelm 2015-09-13 tuned proofs -- less legacy;
2014-10-07 wenzelm 2014-10-07 more antiquotations;
2014-07-04 haftmann 2014-07-04 reduced name variants for assoc and commute on plus and mult
2014-06-17 ballarin 2014-06-17 Lemmas contributed by Joachim Breitner.
2014-03-05 wenzelm 2014-03-05 more symbols;
2014-02-12 blanchet 2014-02-12 renamed 'nat_{case,rec}' to '{case,rec}_nat'
2012-03-25 huffman 2012-03-25 merged fork with new numeral representation (see NEWS)
2012-02-21 huffman 2012-02-21 avoid using constant Int.neg
2011-12-28 wenzelm 2011-12-28 reverted some changes for set->predicate transition, according to "hg log -u berghofe -r Isabelle2007:Isabelle2008"; tuned proofs;
2011-09-12 nipkow 2011-09-12 new fastforce replacing fastsimp - less confusing name
2011-09-02 wenzelm 2011-09-02 tuned proofs;
2011-08-24 wenzelm 2011-08-24 tuned proofs;
2011-01-12 wenzelm 2011-01-12 eliminated global prems; tuned proofs;
2010-12-29 wenzelm 2010-12-29 explicit file specifications -- avoid secondary load path;
2010-03-21 wenzelm 2010-03-21 modernized overloaded definitions;
2010-03-21 wenzelm 2010-03-21 standard headers;
2010-03-21 wenzelm 2010-03-21 slightly more uniform definitions -- eliminated old-style meta-equality;
2010-03-21 wenzelm 2010-03-21 eliminated old constdefs;
2010-03-01 haftmann 2010-03-01 replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
2009-10-22 nipkow 2009-10-22 inv_onto -> inv_into
2009-10-18 nipkow 2009-10-18 merged
2009-10-18 nipkow 2009-10-18 Inv -> inv_onto, inv abbr. inv_onto UNIV.
2009-10-17 wenzelm 2009-10-17 eliminated hard tabulators, guessing at each author's individual tab-width; tuned headers;
2009-06-22 nipkow 2009-06-22 tuned FuncSet
2009-06-19 nipkow 2009-06-19 Made Pi_I [simp]
2009-03-26 wenzelm 2009-03-26 interpretation/interpret: prefixes are mandatory by default;
2008-12-17 ballarin 2008-12-17 More porting to new locales.
2008-12-16 ballarin 2008-12-16 More porting to new locales.
2008-11-17 haftmann 2008-11-17 tuned unfold_locales invocation
2008-07-31 ballarin 2008-07-31 Tuned (for the sake of a meaningless log entry).
2008-07-30 ballarin 2008-07-30 New locales for orders and lattices where the equivalence relation is not restricted to equality.
2008-07-29 ballarin 2008-07-29 Unit_inv_l, Unit_inv_r made [simp].
2008-07-15 ballarin 2008-07-15 Removed uses of context element includes.
2008-05-07 berghofe 2008-05-07 Replaced forward proofs of existential statements by backward proofs to avoid problems with HO unification
2008-03-05 wenzelm 2008-03-05 explicit referencing of background facts;
2007-06-13 wenzelm 2007-06-13 tuned proofs: avoid implicit prems;
2007-01-12 ballarin 2007-01-12 Reverted to structure representation with records.
2006-10-16 ballarin 2006-10-16 Order and lattice structures no longer based on records.
2006-08-03 ballarin 2006-08-03 Restructured algebra library, added ideals and quotient rings.
2006-07-04 ballarin 2006-07-04 Method intro_locales replaced by intro_locales and unfold_locales.
2006-07-04 ballarin 2006-07-04 Minor new lemmas.
2006-06-20 ballarin 2006-06-20 Restructured locales with predicates: import is now an interpretation. New method intro_locales.
2006-06-06 ballarin 2006-06-06 Improved parameter management of locales.
2006-05-22 wenzelm 2006-05-22 removed unchecked'';
2006-05-20 wenzelm 2006-05-20 pow: unchecked;
2005-06-17 haftmann 2005-06-17 migrated theory headers to new format
2005-04-18 ballarin 2005-04-18 Interpretation supports statically scoped attributes; documentation.
2005-04-11 ballarin 2005-04-11 First release of interpretation commands.
2004-07-26 ballarin 2004-07-26 New prover for transitive and reflexive-transitive closure of relations. - Code in Provers/trancl.ML - HOL: Simplifier set up to use it as solver
2004-06-17 paulson 2004-06-17 removal of magmas and semigroups
2004-06-01 paulson 2004-06-01 tidied