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user11235
  • Member for 9 years, 6 months
  • Last seen more than 5 years ago
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Older than the internet, younger than the moon landing.

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79
True or false? $x^2\ne x\implies x\ne 1$
64
Order of finite fields is $p^n$
57
Gibt es im Deutschen Reste von anderen grammatischen Fällen als den vier üblichen?
56
Identity for convolution of central binomial coefficients: $\sum\limits_{k=0}^n \binom{2k}{k}\binom{2(n-k)}{n-k}=2^{2n}$
48
Why not include as a requirement that all functions must be continuous to be differentiable?

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