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Jun 26, 2019 at 22:24 history edited Sándor Kovács CC BY-SA 4.0
\LaTeX typo
Apr 16, 2013 at 16:22 vote accept Graham Leuschke
Feb 14, 2011 at 15:20 history edited Karl Schwede CC BY-SA 2.5
Fixed typo.
Feb 14, 2011 at 15:09 comment added Graham Leuschke Thanks, Karl. This is the sort of proof I knew had to exist.
Feb 11, 2011 at 19:54 history answered Karl Schwede CC BY-SA 2.5