List questions from proof-verification

Published on 27 Mar 2026 - 3:46

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A group with finitely many subgroups is finite.

Published on 25 May 2018 - 20:26

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uniform convergence of $g_n(x)=\frac{x}{n^2}e^{-\frac{x}{n}}$

Published on 28 Mar 2026 - 2:07

56

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Null integral over a curve for all holomorphic forms space.

Published on 25 Mar 2026 - 6:09

256

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$\int_{0}^{1}\phi(t)e^{-at}dt =0$ for every $a>0$ implies $\int_{0}^{1}\phi(t)t^ndt =0.$

Published on 26 May 2018 - 11:10

78

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I gave a slightly different strong induction proof to $3^{2n+1}+2^{n-1}$, is it correct?

Published on 25 Mar 2026 - 22:26

237

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Complex analysis - branch cut of log

Published on 27 Mar 2026 - 3:29

67

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Problem 6.1.20 Part B From The Arts and Crafts of Problem Solving

Published on 26 Mar 2026 - 2:51

449

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Conditional expectation on countably generated $\sigma$-algebra

Published on 26 Mar 2026 - 6:26

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If $H$ has finite index there are finitely many distinct subgroups of form $aHa^{-1}$

Published on 27 May 2018 - 11:10

68

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Find $R\left(\frac{\partial}{\partial\rho}, \frac{\partial}{\partial \theta}\right)\frac{\partial}{\partial \rho}$ in $(\mathbb{R}P^2, g)$

Published on 25 Mar 2026 - 6:12

408

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$\sum\limits_{n=1}^{\infty} \frac{\tan^{-1} n}{n}$ diverges.

Published on 27 May 2018 - 16:41

49

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Inverse Function Theorem Problem Feedback

Published on 25 Mar 2026 - 14:18

61

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Proving a Formal Grammar Parses a String.

Published on 25 Mar 2026 - 3:19

265

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Let $A$ be a matrix with $Nul(A) = 0$. Explain why the matrix $A^T A$ is invertible.

Published on 25 Mar 2026 - 11:13

List Question

Strong induction problem solution to $n! > 2^n,$ is it correct?

A group with finitely many subgroups is finite.

uniform convergence of $g_n(x)=\frac{x}{n^2}e^{-\frac{x}{n}}$

Null integral over a curve for all holomorphic forms space.

$\int_{0}^{1}\phi(t)e^{-at}dt =0$ for every $a>0$ implies $\int_{0}^{1}\phi(t)t^ndt =0.$

I gave a slightly different strong induction proof to $3^{2n+1}+2^{n-1}$, is it correct?

Complex analysis - branch cut of log

Problem 6.1.20 Part B From The Arts and Crafts of Problem Solving

Conditional expectation on countably generated $\sigma$-algebra

If $H$ has finite index there are finitely many distinct subgroups of form $aHa^{-1}$

Find $R\left(\frac{\partial}{\partial\rho}, \frac{\partial}{\partial \theta}\right)\frac{\partial}{\partial \rho}$ in $(\mathbb{R}P^2, g)$

$\sum\limits_{n=1}^{\infty} \frac{\tan^{-1} n}{n}$ diverges.

Inverse Function Theorem Problem Feedback

Proving a Formal Grammar Parses a String.

Let $A$ be a matrix with $Nul(A) = 0$. Explain why the matrix $A^T A$ is invertible.

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