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Mathematics
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math.h

Math undergrad student. Also likes philosophy.

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  • Member for 2 years, 9 months
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  • Last seen 26 mins ago

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Top Posts (151) All Questions Answers | Votes Newest

5 Proving that the set of all increasing sequences is uncountable Jan 11 '17
4 If for every $\epsilon>0$ we obtain some continuous function $g$ such that $|f(x)-g(x)|<\epsilon$, then $f$ is also continuous Feb 4 '17
4 Show that a set is finite if and only if every linear ordering on it is a well-ordering Feb 21 '17
4 If $a^2=b^2+c^2$, show that among those integers there is a multiple of 5 and a multiple of 2 Sep 26 '17
4 If $gh=hg$ and $\rho$ is a representation of $G$, then the matrices $\rho(g)$ and $\rho(h)$ are simulatenously diagonalizable May 17
4 How do you convince someone that parallel lines can touch/meet? Jan 9 '17
3 There are exactly $2^k$ elements $a\in R$ such that $a^2=a$. Sep 16
3 If $f$ vanishes at all its points of continuity, then $\|f\| = 0.$ Oct 1
3 Confirmation of Proof: $p\mid n \implies p\nmid n+1$ Oct 16 '17
3 About the group structure of the quotient $G/H$, where $H$ is a normal subgroup. Apr 29
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