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ithisa

Kids in rectangles irritating sick urchins rattling foxes

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  • Member for 6 years, 4 months
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  • Last seen Jul 2 '17 at 1:53

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Top posts (100) All Questions Answers | Votes Newest

21 Proof that the hypergeometric distribution with large $N$ approaches the binomial distribution. Mar 14 '13
15 Combinatorial proof of $\sum^{n}_{i=1}\binom{n}{i}i=n2^{n-1}$. May 11 '13
11 Show that triangle-free planar graphs are four-colorable Jul 28 '13
9 Seating of $n$ people with tickets into $n+k$ chairs with 1st person taking a random seat Jan 30 '13
8 Contradiction in the rules regarding determinants and row operations? Mar 21 '13
8 Deducing a probability distribution from its moment-generating function Apr 7 '13
6 Proving that G contains a cycle with at least $k+1$ edges Jul 1 '13
6 What's so special about a 2D plane in graph theory? Jul 17 '13
6 Proving that a “prime graph” is connected Aug 1 '13
5 Proving that similar matrices have identical ranks Sep 9 '13
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