Wed, 01 Mar 2000 12:18:40 +0100 paulson new theorems from Sidi Ould Ehmety
Tue, 29 Feb 2000 23:08:27 +0100 wenzelm tuned;
Tue, 29 Feb 2000 23:06:20 +0100 wenzelm add_cases_induct: project_rules accomodates mutual induction;
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