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when toggle format what by license comment
Jul 16, 2010 at 22:53 answer added Qing Liu timeline score: 4
Mar 29, 2010 at 16:58 history edited H. Hasson CC BY-SA 2.5
Added condition
Mar 29, 2010 at 1:36 comment added David E Speyer See David Lehavi's answer to a very similar question I asked: mathoverflow.net/questions/835/…
Mar 28, 2010 at 22:52 history asked H. Hasson CC BY-SA 2.5