src/HOL/Algebra/abstract/Ring.thy
Thu, 28 Nov 2002 10:50:42 +0100 ballarin HOL-Algebra partially ported to Isar.
Mon, 15 Oct 2001 20:34:12 +0200 wenzelm ring includes plus_ac0;
Sat, 10 Feb 2001 08:52:41 +0100 ballarin Changes to HOL/Algebra:
Fri, 10 Nov 2000 19:15:14 +0100 wenzelm use inverse, divide from basic HOL;
Wed, 19 Jul 2000 12:28:32 +0200 paulson renamed // to / (which is what we want anyway) to avoid clash with the new
Fri, 05 Nov 1999 11:14:26 +0100 paulson Algebra and Polynomial theories, by Clemens Ballarin
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