src/HOL/Number_Theory/MiscAlgebra.thy
2014-02-04 paulson 2014-02-04 removal of "back", etc.
2013-09-03 wenzelm 2013-09-03 tuned proofs -- clarified flow of facts wrt. calculation;
2011-09-12 nipkow 2011-09-12 new fastforce replacing fastsimp - less confusing name
2011-09-10 wenzelm 2011-09-10 misc tuning;
2011-08-09 haftmann 2011-08-09 tuned proofs
2011-03-13 wenzelm 2011-03-13 tuned headers;
2011-01-13 wenzelm 2011-01-13 eliminated global prems; tuned proofs;
2010-03-01 haftmann 2010-03-01 replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
2009-09-01 haftmann 2009-09-01 some reorganization of number theory