Thu, 05 Jun 1997 19:44:13 +0200 nipkow added finite_converse
Thu, 05 Jun 1997 17:19:05 +0200 nipkow Moved image_is_empty from Finite.ML to equalities.ML
Thu, 05 Jun 1997 14:40:35 +0200 nipkow Modified a few defs and proofs because of the changes to theory Finite.thy.
Thu, 05 Jun 1997 14:39:22 +0200 nipkow Finite.ML Finite.thy: Replaced `finite subset of' by mere `finite'.
Thu, 05 Jun 1997 14:06:23 +0200 paulson New recdef examples
Thu, 05 Jun 1997 13:55:29 +0200 paulson Removal of freeze_vars and thaw_vars. New freeze_thaw
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