Thu, 27 Nov 1997 19:36:08 +0100 wenzelm removed same_thm;
Thu, 27 Nov 1997 14:05:25 +0100 paulson Tidying, mostly indentation
Thu, 27 Nov 1997 13:58:51 +0100 paulson Deleted some needless addSIs; got rid of a slow Blast_tac
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