Thu, 31 May 2007 15:23:35 +0200 urbanc tuned the proof
Thu, 31 May 2007 14:47:20 +0200 urbanc introduced symmetric variants of the lemmas for alpha-equivalence
Thu, 31 May 2007 14:34:09 +0200 wenzelm proper loading of ML files;
Thu, 31 May 2007 14:34:07 +0200 wenzelm removed obsolete IFOL.thy/FOL.thy values;
Thu, 31 May 2007 14:34:06 +0200 wenzelm proper loading of ML files;
Thu, 31 May 2007 14:34:05 +0200 wenzelm tuned header;
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