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Nov 1, 2013 at 13:40 history edited GH from MO CC BY-SA 3.0
deleted 17 characters in body; edited title
Nov 1, 2013 at 12:39 answer added fedja timeline score: 8
Oct 31, 2013 at 13:54 vote accept Huichi Huang
Oct 31, 2013 at 12:24 comment added GH from MO It seems that I answered this interesting question in the affirmative. Thanks to Emil Jeřábek, Will Sawin, Michael Zieve for the criticism and encouragement. Thanks to fedja for simplifying the proof substantially (see his comment below).
Oct 30, 2013 at 15:20 answer added GH from MO timeline score: 13
Oct 30, 2013 at 12:45 history edited Tom De Medts
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Oct 30, 2013 at 11:41 history asked Huichi Huang CC BY-SA 3.0