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Sep 23, 2011 at 1:21 vote accept Shaun Ault
Sep 22, 2011 at 23:41 comment added Dylan Wilson Remember that the "maps" here are not in the homotopy category (otherwise why are we talking about their homotopies?), so "choose a representative" means something a bit nicer than choosing a rep. of a homotopy class of maps.
Sep 22, 2011 at 23:37 history answered Dylan Wilson CC BY-SA 3.0