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Apr 13, 2017 at 12:57 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Dec 7, 2010 at 14:25 vote accept Sergei Ivanov
Dec 7, 2010 at 13:11 answer added fedja timeline score: 19
Dec 7, 2010 at 11:43 history asked Sergei Ivanov CC BY-SA 2.5