Sat, 04 Dec 2010 21:53:00 +0100 haftmann more intimate definition of fold_list / fold_once in terms of fold
Sat, 04 Dec 2010 21:26:33 +0100 haftmann canonical fold signature
Sat, 04 Dec 2010 21:26:55 +0100 wenzelm formal notepad without any result;
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