Fri, 08 Nov 1996 14:04:38 +0100 paulson Deleted a redundant pattern
Fri, 08 Nov 1996 14:02:51 +0100 paulson Adjusting to new version of uresult
Thu, 07 Nov 1996 10:19:15 +0100 paulson Tidying up: removing redundant assumptions, etc.
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