Wed, 01 Apr 2009 16:03:18 +0200 nipkow merged
Wed, 01 Apr 2009 16:03:00 +0200 nipkow added strong_setprod_cong[cong] (in analogy with setsum)
Wed, 01 Apr 2009 15:16:09 +0200 haftmann proper external tikz pictures
Wed, 01 Apr 2009 12:19:15 +0200 wenzelm merged
Wed, 01 Apr 2009 11:53:05 +0200 wenzelm tuned comments;
Wed, 01 Apr 2009 11:53:59 +0200 wenzelm merged
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