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when toggle format what by license comment
Jan 13, 2011 at 19:05 vote accept Dmitri Pavlov
Jan 13, 2011 at 6:24 comment added David Roberts +1 very nice! I wonder what sort of functors there are from the category of braids to this category?
Jan 13, 2011 at 6:19 history answered Victor Ostrik CC BY-SA 2.5