src/HOL/Library/comm_ring.ML
Fri, 10 Mar 2006 15:33:48 +0100 haftmann renamed HOL + - * etc. to HOL.plus HOL.minus HOL.times etc.
Thu, 19 Jan 2006 21:22:08 +0100 wenzelm setup: theory -> theory;
Tue, 20 Sep 2005 14:10:29 +0200 wenzelm added Commutative_Ring (from Main HOL);
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