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Aristu

Junior Software Engineer & Curator at the Library of Babel.

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  • São Luís - State of Maranhão, Brazil
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5 Show that $233$ divides $2^{29} - 1$ Apr 17 '16
2 Understanding $\lor~E$ in Natural Deduction? Apr 2 '19
2 $2\sqrt n-2<1+\frac{1}{\sqrt2}+\frac{1}{\sqrt3}+…+\frac{1}{\sqrt n}<2\sqrt n-1$ Sep 12 '15
1 Need to prove the sequence $a_n=1+\frac{1}{2^2}+\frac{1}{3^2}+\cdots+\frac{1}{n^2}$ converges Aug 17 '15
1 Prove $\{ (x,y) \in \mathbb{R}^2 \mid x \ne y\} \cup \{(0,0)\} $ is not open Jun 22 '17

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