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Nov 7, 2013 at 11:31 comment added naf As pointed out by Jonathan Wise, your appeal to Proposition 3.92 of Harris-Morrison is not correct.
Nov 6, 2013 at 15:51 vote accept IMeasy
Nov 6, 2013 at 15:51
Nov 5, 2013 at 0:33 history answered Puzzled CC BY-SA 3.0