List questions from proof-explanation

Published on 08 Apr 2026 - 18:48

280

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Clarification on proof of fundamental theorem of finite abelian groups

Published on 09 Apr 2026 - 4:24

115

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Professor Tait's Problem of Arrangement

Published on 10 Apr 2026 - 13:24

870

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If $f$ is uniformly continuous on two open sets with a non-empty intersection, then $f$ is uniformly continuous on their union

Published on 13 Apr 2026 - 9:32

798

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A Combinatorics Question: Why Is My Solution Wrong, And The Given Solution Correct?

Published on 13 Apr 2026 - 14:22

441

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Proving $(ab)^{1/n}=a^{1/n}b^{1/n}$.

Published on 16 Apr 2026 - 14:41

1k

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Combinatorial explanation of ${n\choose r}={n-1\choose r-1}+{n-1\choose r}$

Published on 11 Apr 2026 - 18:20

266

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How do you prove stability of a dynamical systems?

Published on 08 Apr 2026 - 19:49

335

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Sequence in $R$ with no convergent subsequence.

Published on 15 Apr 2026 - 23:53

1.1k

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Show that there are infinitely many positive integers $n$ such that $p$ divides $2^{n}-n$

Published on 16 Apr 2026 - 14:06

95

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In one-step induction, why sometimes there are 2 base cases?

Published on 15 Apr 2026 - 11:25

62

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If $a < b$ and $a > 0$, then $a^2 < b^2.$

Published on 16 Apr 2026 - 3:23

50

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Closure of a sigma algebra and complete measure spaces

Published on 13 Apr 2026 - 23:29

184

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Request help in understanding proof of "Basic counting theorem".

Published on 12 Apr 2026 - 13:30

28

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Proving function's (un)boundeness via MVT

Published on 11 Apr 2026 - 23:09

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Magnitude of Resistance

Clarification on proof of fundamental theorem of finite abelian groups

Professor Tait's Problem of Arrangement

If $f$ is uniformly continuous on two open sets with a non-empty intersection, then $f$ is uniformly continuous on their union

A Combinatorics Question: Why Is My Solution Wrong, And The Given Solution Correct?

Proving $(ab)^{1/n}=a^{1/n}b^{1/n}$.

Combinatorial explanation of ${n\choose r}={n-1\choose r-1}+{n-1\choose r}$

How do you prove stability of a dynamical systems?

Sequence in $R$ with no convergent subsequence.

Show that there are infinitely many positive integers $n$ such that $p$ divides $2^{n}-n$

In one-step induction, why sometimes there are 2 base cases?

If $a < b$ and $a > 0$, then $a^2 < b^2.$

Closure of a sigma algebra and complete measure spaces

Request help in understanding proof of "Basic counting theorem".

Proving function's (un)boundeness via MVT

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