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when toggle format what by license comment
Dec 1, 2012 at 13:28 history edited Charles Staats CC BY-SA 3.0
improved tex formatting
Feb 15, 2011 at 20:21 vote accept Hailong Dao
Oct 10, 2010 at 14:26 answer added Francesco Polizzi timeline score: 7
Oct 9, 2010 at 18:56 history edited Hailong Dao CC BY-SA 2.5
deleted 7 characters in body
Oct 9, 2010 at 18:19 history asked Hailong Dao CC BY-SA 2.5