List questions from self-learning

Published on 28 Mar 2026 - 8:47

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Proof check from basic set theory

Published on 05 Sep 2014 - 2:04

1.9k

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A Compact Real Analysis book for a graduate student, who is short of time.

Published on 25 Mar 2026 - 23:39

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What is the (rigorous) reason that the derivative of $|x|$ does not exist at $x=0$?

Published on 05 Sep 2014 - 13:49

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Introductory texts in abstract algebra, and game theory taking non-standard approaches

Published on 05 Sep 2014 - 23:42

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Is there a closed form expression for $\int_{- \infty}^\infty \int_{-\infty}^y \frac{1}{2 \pi} e^{-(1/2) ( x^2+y^2 )} \mathrm{d}x\,\mathrm{d}y$?

Published on 06 Sep 2014 - 14:59

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Simple Conditional Variance Proof Question

Published on 29 Mar 2026 - 14:54

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Find inverse of $I+\mathbf{ab}^\intercal$

Published on 06 Sep 2014 - 16:23

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How many ways there are to divide $5$-element set to at mot three sets?

Published on 06 Sep 2014 - 16:55

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Showing a set is closed, question from real analysis

Published on 06 Sep 2014 - 18:41

737

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$[0,1]^{[0,1]}$ is separable

Published on 06 Sep 2014 - 21:35

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Books/subjects for proof practice

Published on 23 Feb 2026 - 8:19

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Testing convergence of the series of $n^p((n-1)^{-1/2}-n^{-1/2})$

Published on 07 Sep 2014 - 13:16

119

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exam exercise on Series problem.

Published on 07 Sep 2014 - 16:29

125

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On a recursive sequence (exercise 8.9 Apostol)

Published on 07 Sep 2014 - 20:49

List Question

On complex numbers and absolute values

Proof check from basic set theory

A Compact Real Analysis book for a graduate student, who is short of time.

What is the (rigorous) reason that the derivative of $|x|$ does not exist at $x=0$?

Introductory texts in abstract algebra, and game theory taking non-standard approaches

Is there a closed form expression for $\int_{- \infty}^\infty \int_{-\infty}^y \frac{1}{2 \pi} e^{-(1/2) ( x^2+y^2 )} \mathrm{d}x\,\mathrm{d}y$?

Simple Conditional Variance Proof Question

Find inverse of $I+\mathbf{ab}^\intercal$

How many ways there are to divide $5$-element set to at mot three sets?

Showing a set is closed, question from real analysis

$[0,1]^{[0,1]}$ is separable

Books/subjects for proof practice

Testing convergence of the series of $n^p((n-1)^{-1/2}-n^{-1/2})$

exam exercise on Series problem.

On a recursive sequence (exercise 8.9 Apostol)

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