Wed, 26 May 2004 11:43:50 +0200 paulson more group isomorphisms
Mon, 24 May 2004 18:35:34 +0200 nipkow added drop_take:thm
Fri, 21 May 2004 21:49:45 +0200 berghofe - deleted unneeded function eta_long (now in Pure/pattern.ML
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