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jul 5 at 17:14
How do you prove that $n^n$ is $O(n!^2)$?
jan 14 '12 at 18:47
Is this algebraic identity obvious?
jan 13 '12 at 12:04
Why “characteristic zero” and not “infinite characteristic”?
aug 31 '11 at 16:50
Need a result of Euler that is simple enough for a child to understand
