Tue, 16 May 2006 20:28:02 +0200 wenzelm updated;
Tue, 16 May 2006 18:31:46 +0200 wenzelm * Pure/library: divide_and_conquer;
Tue, 16 May 2006 18:20:26 +0200 paulson replaced references to the robot by the mailing list page
Tue, 16 May 2006 14:11:39 +0200 urbanc added a much simpler proof for the iteration and
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