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Oct 6, 2013 at 19:37 history edited Qiaochu Yuan CC BY-SA 3.0
added 1141 characters in body
Oct 6, 2013 at 17:25 history edited Qiaochu Yuan CC BY-SA 3.0
added 120 characters in body
Oct 6, 2013 at 17:09 history edited Qiaochu Yuan CC BY-SA 3.0
deleted 4 characters in body
Oct 6, 2013 at 17:03 history edited Qiaochu Yuan CC BY-SA 3.0
added 7 characters in body
Oct 6, 2013 at 16:48 history answered Qiaochu Yuan CC BY-SA 3.0