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  • 2

    Got a Score:5 Comment 2016-01-25

  • 2

    Days Read in a Row 2013-06-14

  • Posted a Comment 2013-01-20

  • Had a Comment Modded Up 2013-02-08

  • Years Read 2014-03-03

What are these achievement things?

We warn the reader in advance that the proof presented here depends on a clever but highly unmotivated trick. -- Howard Anton, "Elementary Linear Algebra"