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Nov 30, 2009 at 8:33 comment added Harry Gindi You stole the words right out of my mouth on the first paragraph. I think the reason we want a good category of spaces to be self-dual because it should have a model-structure, which should of course be self-dual. Although, I could be wrong.
Nov 30, 2009 at 8:11 history answered Yemon Choi CC BY-SA 2.5