List questions from proof-verification

Published on 30 Mar 2026 - 2:45

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Is my proof of straight line being the shortest route from one point to another correct?

Published on 29 Mar 2026 - 18:15

169

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Proving if $f$ is UC on a bounded set $S$, then $f$ is bounded function on $S$.

Published on 26 Mar 2026 - 6:30

45

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How do I prove $\Omega^{0}(U)=C^{\infty}(U)?$

Published on 25 Mar 2026 - 12:46

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$\tan(z)=i$, no solution

Published on 30 Mar 2026 - 23:20

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Level curve and PDE

Published on 05 Apr 2026 - 11:18

69

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Prove that for any $g\in G$ and $m,n\in \mathbb{Z}$, $g^{m}g^{n}=g^{m+n}$.

Published on 25 Mar 2026 - 17:52

129

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Proving continuity at $0$ for $f(x,y)=\dfrac{x^2y}{x^2+y^2}$

Published on 10 Jul 2018 - 0:09

57

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Integration with partial fractions

Published on 25 Mar 2026 - 12:47

477

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Two balls are drawn at random from a bag (probability)

Published on 10 Jul 2018 - 0:50

251

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Let $a,b\in G$. If $a^{4}b=ba$ and $a^{3}=e$, then prove that $ab=ba$.

Published on 25 Mar 2026 - 17:19

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Do isomorphic ideals yield isomorphic quotient rings?

Published on 10 Jul 2018 - 2:19

61

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Proof verification: proof with families of sets

Published on 10 Jul 2018 - 2:25

117

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is my proof correct for $\int_{0}^{x^2}g(t)dt=x$, is true only in $x=0$?

Published on 10 Jul 2018 - 3:14

278

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$\varepsilon-\delta$ Proof: $\lim\limits_{x\to0}e^x=1$

Published on 25 Mar 2026 - 14:29

List Question

Probability of sixth ball to be white

Is my proof of straight line being the shortest route from one point to another correct?

Proving if $f$ is UC on a bounded set $S$, then $f$ is bounded function on $S$.

How do I prove $\Omega^{0}(U)=C^{\infty}(U)?$

$\tan(z)=i$, no solution

Level curve and PDE

Prove that for any $g\in G$ and $m,n\in \mathbb{Z}$, $g^{m}g^{n}=g^{m+n}$.

Proving continuity at $0$ for $f(x,y)=\dfrac{x^2y}{x^2+y^2}$

Integration with partial fractions

Two balls are drawn at random from a bag (probability)

Let $a,b\in G$. If $a^{4}b=ba$ and $a^{3}=e$, then prove that $ab=ba$.

Do isomorphic ideals yield isomorphic quotient rings?

Proof verification: proof with families of sets

is my proof correct for $\int_{0}^{x^2}g(t)dt=x$, is true only in $x=0$?

$\varepsilon-\delta$ Proof: $\lim\limits_{x\to0}e^x=1$

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