Thu, 10 Oct 1996 10:46:14 +0200 Addition of de Morgan laws
paulson [Thu, 10 Oct 1996 10:46:14 +0200] rev 2082
Addition of de Morgan laws
Thu, 10 Oct 1996 10:45:20 +0200 Removed Fast_tac made redundant by addition of de Morgan laws
paulson [Thu, 10 Oct 1996 10:45:20 +0200] rev 2081
Removed Fast_tac made redundant by addition of de Morgan laws
Wed, 09 Oct 1996 13:50:28 +0200 Fuller description of examples
paulson [Wed, 09 Oct 1996 13:50:28 +0200] rev 2080
Fuller description of examples
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