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Jun 9, 2011 at 21:11 vote accept rlo
Jun 9, 2011 at 18:40 answer added Richard Stanley timeline score: 12
Jun 9, 2011 at 17:56 comment added rlo Sorry, that is perhaps unclear. I included the examples to try to clear things up, but I guess I was unsuccessful. I mean a pairing to be a way to associate to each element of A a unique element of B. Perhaps one-to-one correspondence would be better?
Jun 9, 2011 at 17:26 comment added Qiaochu Yuan What do you mean by "pairing"?
Jun 9, 2011 at 17:17 history asked rlo CC BY-SA 3.0