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Mathematics
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mm-aops
  • Member for 10 years
  • Last seen more than 3 years ago
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All Questions Answers
Score Newest
answer
33
Union of two $\sigma$-algebras is not $\sigma$-algebra
Jan 27, 2015
answer
15
For $x\in\mathbb R\setminus\mathbb Q$, the set $\{nx-\lfloor nx\rfloor: n\in \mathbb{N}\}$ is dense on $[0,1)$
Jun 23, 2014
answer
11
how to prove that $n(n+1)$ can't be square?
Jun 9, 2014
answer
10
Need to prove that the equation has only 1 solution.
Sep 29, 2014
answer
8
Additive but not $\sigma$-additive function
Sep 13, 2014
answer
7
Möbius band with its middle part removed is still connected
May 14, 2014
answer
7
proving $\lim\limits_{n\to\infty} \int_{0}^{1} f(x^n)dx = f(0)$ when f is continous on [0,1]
Nov 18, 2013
answer
7
Prove that when $f(A) \subseteq f(B)$ doesn't always mean that $A \subseteq B$
Nov 5, 2013
answer
7
Does continuity of $f$ imply $f^{-1}(\bar A)\subset\overline{f^{-1}(A)}$?
Jul 29, 2014
answer
6
Math Olympiad Algebraic Question
Jun 3, 2014

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