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Aristu
  • Member for 9 years, 5 months
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Software Engineer & Curator at the Library of Babel.

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5
Show that $233$ divides $2^{29} - 1$
Apr 17, 2016
question
2
Understanding $\lor~E$ in Natural Deduction?
Apr 2, 2019
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2
Need to prove the sequence $a_n=1+\frac{1}{2^2}+\frac{1}{3^2}+\cdots+\frac{1}{n^2}$ converges
Aug 17, 2015
answer
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$2\sqrt n-2<1+\frac{1}{\sqrt2}+\frac{1}{\sqrt3}+....+\frac{1}{\sqrt n}<2\sqrt n-1$
Sep 12, 2015
question
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Prove $\{ (x,y) \in \mathbb{R}^2 \mid x \ne y\} \cup \{(0,0)\} $ is not open
Jun 22, 2017
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Delete my old (and wrong) accepted answer
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10
Why NFA is called Non-deterministic?
9
Docker container can't curl, SSL wrong version number
8
How to prove a complete binary tree of depth N has $2^{N+1} - 1$ nodes?
7
invalid empty ssh agent socket, make sure SSH_AUTH_SOCK is set How to set SSH_AUTH_SOCK for docker build?
6
Every connected graph on more than 3 vertices has two vertices whose removal doesn't disconnect it