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Kitegi

Apparently, this user prefers to keep an air of mystery about them.

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55 Colliding Bullets Nov 12 '15
24 Odd digits of $2^n$ Jan 28 '16
18 Let $f:K\to K$ with $\|f(x)-f(y)\|\geq ||x-y||$ for all $x,y$. Show that equality holds and that $f$ is surjective. [duplicate] Jul 6 '15
16 $A^2=AB+BA$. Prove that $\det(AB-BA)=0$ Apr 9 '15
14 Giving a specific example of a positive sequence increasing to 1 and with its partial products having a positive limit Apr 17 '16
9 $n^a$ integral for all integer $n$ implies $a$ integral Feb 6 '16
8 How to prove this identity of ceiling function? Aug 17 '15
6 An example of a mapping $\eta\colon\mathbb{N}\to\mathbb{N}$ such that $\eta(x)=n$ has infinitely many solutions for each $n\in\mathbb{N}$ May 17 '15
5 Can a “well behaved” function oscilate between two different growth orders? May 16 '15
5 Prove that the solution of $y'+y=\arctan(e^x), y(0)=2$ admits horizontal asymptote. May 12 '15
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