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Nov 10, 2016 at 21:03 history edited Cameron Zwarich CC BY-SA 3.0
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Nov 10, 2016 at 18:05 history edited Cameron Zwarich CC BY-SA 3.0
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Nov 10, 2016 at 17:37 history edited Cameron Zwarich CC BY-SA 3.0
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Nov 10, 2016 at 15:49 comment added Dave Penneys there is a problem with the first inequality. If $a\geq 0$ with $\|a\|\leq 1$, then $a^2\leq a$.
Nov 9, 2016 at 22:19 history answered Cameron Zwarich CC BY-SA 3.0