Fri, 10 Mar 2006 00:53:28 +0100 huffman added many simple lemmas
Thu, 09 Mar 2006 06:05:01 +0100 mengj Added more functions to the signature and tidied up some functions.
Wed, 08 Mar 2006 21:40:46 +0100 wenzelm tuned;
Wed, 08 Mar 2006 18:52:43 +0100 urbanc tuned some proofs
Wed, 08 Mar 2006 18:37:31 +0100 wenzelm select_goals: split original conjunctions;
Wed, 08 Mar 2006 18:37:30 +0100 wenzelm method: goal restriction defaults to [1];
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