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when toggle format what by license comment
Jan 30, 2013 at 11:45 comment added Joseph O'Rourke Thank you, Günter! That is a clever and careful argument.
Jan 30, 2013 at 11:43 vote accept Joseph O'Rourke
Jan 29, 2013 at 19:10 history answered Günter Rote CC BY-SA 3.0