src/HOL/Algebra/Congruence.thy
2011-08-24 wenzelm 2011-08-24 tuned syntax -- avoid ambiguities;
2011-03-13 wenzelm 2011-03-13 tuned headers;
2010-10-31 ballarin 2010-10-31 Minor reformat.
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;
2010-02-24 wenzelm 2010-02-24 modernized syntax declarations, and make them actually work with authentic syntax;
2008-12-16 ballarin 2008-12-16 More porting to new locales.
2008-08-01 ballarin 2008-08-01 Generalised polynomial lemmas from cring to ring.
2008-07-29 ballarin 2008-07-29 New theory on divisibility.