Wed, 23 Sep 1998 10:15:09 +0200 paulson a few new theorems
Wed, 23 Sep 1998 10:12:01 +0200 paulson deleted needless parentheses
Wed, 23 Sep 1998 10:11:18 +0200 paulson tidying and deleting needless parentheses
Wed, 23 Sep 1998 10:03:32 +0200 paulson deleted needless parentheses
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