Wed, 21 May 1997 10:53:38 +0200 paulson Removed rprod from the WF relation
Wed, 21 May 1997 10:53:02 +0200 paulson Removed rprod from the WF relation; simplified proofs;
Wed, 21 May 1997 10:09:21 +0200 nipkow Replaced Konrad's own add_term_names by the predefined one.
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