Fri, 12 Jul 2013 16:19:05 +0200 wenzelm localized and modernized adhoc-overloading (patch by Christian Sternagel);
Fri, 12 Jul 2013 15:51:25 +0200 wenzelm merged
Fri, 12 Jul 2013 15:39:46 +0200 wenzelm tuned proof;
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