Fri, 02 Jan 1998 17:16:39 +0100 paulson Blast_tac now squashes flex-flex pairs immediately
Fri, 02 Jan 1998 17:15:52 +0100 paulson New theorem image_subsetI
Fri, 02 Jan 1998 17:15:19 +0100 paulson Making proofs faster, especially using keysFor_parts_insert
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