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Mar 19, 2018 at 3:58 comment added Francois Ziegler Related: Why is the identity element of a group denoted by $e$?
Jan 6, 2010 at 3:10 comment added Kevin H. Lin Who was the first to use $Z$ for a partition function?
Dec 11, 2009 at 20:28 history answered Vectornaut CC BY-SA 2.5