Wed, 05 Sep 2007 21:09:11 +0200 wenzelm use preferences.ML: do setmp *here*, to capture intended default values;
Wed, 05 Sep 2007 20:48:25 +0200 wenzelm tuned;
Wed, 05 Sep 2007 15:46:32 +0200 urbanc modified proofs so that they are not using claset()
Tue, 04 Sep 2007 15:30:31 +0200 nipkow tuned lemma; replaced !! by arbitrary
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