src/HOL/GroupTheory/Ring.thy
Mon, 10 Dec 2001 20:59:43 +0100 wenzelm bounded abstraction now uses syntax "%" / "\<lambda>" instead of "lam";
Wed, 25 Jul 2001 13:13:01 +0200 paulson partial restructuring to reduce dependence on Axiom of Choice
Mon, 23 Jul 2001 17:47:49 +0200 paulson Final version of Florian Kammueller's examples
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