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when toggle format what by license comment
Apr 13, 2017 at 12:19 history edited CommunityBot
replaced http://math.stackexchange.com/ with https://math.stackexchange.com/
Feb 20, 2013 at 0:20 vote accept Paul
Feb 19, 2013 at 12:32 answer added Ramiro de la Vega timeline score: 3
Feb 19, 2013 at 11:31 history asked Paul CC BY-SA 3.0