Question

Fermat little theorem example

score 219 · Answer 1 · 2026-04-12 22:26:16

219

Views

Fermat little theorem example

Published on 12 Apr 2026 - 22:26

score 574 · Answer 2 · 2026-04-13 12:07:55

574

Views

Union is Distributive over Intersection with Indexed families of sets Proof Explanation using finite trivial example

Published on 13 Apr 2026 - 12:07

score 30 · Answer 3 · 2026-04-14 10:42:33

30

Views

amenability on Banach algebras

Published on 14 Apr 2026 - 10:42

score 430 · Answer 4 · 2026-04-14 13:00:20

430

Views

Example for $c(fg)\neq c(f)c(g)$

Published on 14 Apr 2026 - 13:00

score 329 · Answer 5 · 2026-04-09 06:19:32

329

Views

The idea of weakly locally connected (connected im kleinen) points, and counterexamples.

Published on 09 Apr 2026 - 6:19

score 85 · Answer 6 · 2026-04-16 13:37:48

85

Views

Sequence $\{f_n\}$ of non-neg. meas. on [0,1] s.t $f_n \to 0$ a.e but if $[a,b]\subset[0,1]$ then $\lim_{n\to\infty}\int_{a}^{b}f_n(x)dx =(b-a)$

Published on 16 Apr 2026 - 13:37

score 574 · Answer 7 · 2026-04-12 00:44:33

574

Views

Example of a quasi-compact morphism which is not quasi-separated

Published on 12 Apr 2026 - 0:44

score 1.1k · Answer 8 · 2026-04-16 22:42:45

1.1k

Views

Does there exist a bijective differentiable function $f:\mathbb{R^+}\rightarrow \mathbb{R^+}$, whose derivative is not a continuous function?

Published on 16 Apr 2026 - 22:42

score 52 · Answer 9 · 2026-04-13 21:48:05

52

Views

Let $(G,\ast )$ a group and $H$ a normal subgroup in $G$. If $K$ is a subgroup in $G$ containing $H$ then $K$ is normal in $G$

Published on 13 Apr 2026 - 21:48

score 254 · Answer 10 · 2026-04-15 09:45:26

254

Views

Distance function that works as a metric for a set and not for the other

Published on 15 Apr 2026 - 9:45

score 489 · Answer 11 · 2026-04-15 18:02:04

489

Views

Any quick examples of a Normal Space but not $T_1$

Published on 15 Apr 2026 - 18:02

score 103 · Answer 12 · 2026-04-13 08:35:00

103

Views

Set equality negation

Published on 13 Apr 2026 - 8:35

score 276 · Answer 13 · 2026-04-15 05:35:31

276

Views

Prove the set ${\{u \in \mathbb{R^n} | f(u)<c}\}$ is open in $\mathbb{R^n}$.

Published on 15 Apr 2026 - 5:35

score 166 · Answer 14 · 2026-04-12 00:44:30

166

Views

Example of a function in Riemannian manifold

Published on 12 Apr 2026 - 0:44

score 78 · Answer 15 · 2026-04-10 01:30:45

78

Views

What does "take away" mean in combinatoric questions: why divide instead of subtract?

Published on 10 Apr 2026 - 1:30

List Question

Fermat little theorem example

Union is Distributive over Intersection with Indexed families of sets Proof Explanation using finite trivial example

amenability on Banach algebras

Example for $c(fg)\neq c(f)c(g)$

The idea of weakly locally connected (connected im kleinen) points, and counterexamples.

Sequence $\{f_n\}$ of non-neg. meas. on [0,1] s.t $f_n \to 0$ a.e but if $[a,b]\subset[0,1]$ then $\lim_{n\to\infty}\int_{a}^{b}f_n(x)dx =(b-a)$

Example of a quasi-compact morphism which is not quasi-separated

Does there exist a bijective differentiable function $f:\mathbb{R^+}\rightarrow \mathbb{R^+}$, whose derivative is not a continuous function?

Let $(G,\ast )$ a group and $H$ a normal subgroup in $G$. If $K$ is a subgroup in $G$ containing $H$ then $K$ is normal in $G$

Distance function that works as a metric for a set and not for the other

Any quick examples of a Normal Space but not $T_1$

Set equality negation

Prove the set ${\{u \in \mathbb{R^n} | f(u)<c}\}$ is open in $\mathbb{R^n}$.

Example of a function in Riemannian manifold

What does "take away" mean in combinatoric questions: why divide instead of subtract?

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