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| bio | website | |
|---|---|---|
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| age | ||
| visits | member for | 2 years, 8 months |
| seen | May 19 at 2:12 | |
| stats | profile views | 426 |
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Apr 23 |
suggested | suggested edit on Combinatorial proof of $\sum \limits_{k=1}^n k {n\choose k}^2 = n {2n-1 \choose n-1}.$ |
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Apr 8 |
suggested | suggested edit on Algebraic Proof that $\sum\limits_{i=0}^n \binom{n}{i}=2^n$ |
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Apr 6 |
suggested | suggested edit on Choose between Combinations & Permutations |
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Apr 3 |
suggested | suggested edit on How can I evaluate $\sum_{n=0}^\infty (n+1)x^n$ |
