Question

Outer measure does not satisfy countable additivity

score 449 · Answer 1 · 2026-04-11 02:17:35

449

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Outer measure does not satisfy countable additivity

Published on 11 Apr 2026 - 2:17

score 60 · Answer 2 · 2026-04-16 15:56:43

60

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prove/disprove that $\lim_{x\to 0}f(x) = 0$

Published on 16 Apr 2026 - 15:56

score 147 · Answer 3 · 2026-04-16 20:28:42

147

Views

Integrals,tetration, and inequalities such that $\int_{0}^{\infty}x^{-x^{\left(\frac{1}{2}x\right)^{\left(\frac{1}{3}x\right)}}}dx>2$

Published on 16 Apr 2026 - 20:28

score 78 · Answer 4 · 2026-04-14 00:17:28

Example of a subset of $\mathbb{R}^2$ such that U is closed under addition and is closed under scalar multiplication but is not a subspace of R2

score 177 · Answer 5 · 2026-04-14 11:52:01

177

Views

Example of a Chief series

Published on 14 Apr 2026 - 11:52

score 119 · Answer 6 · 2026-04-13 23:59:19

119

Views

Does uniform convergence of continuously differentiable $f_n$ imply point-wise convergence of derivatives?

Published on 13 Apr 2026 - 23:59

score 78 · Answer 7 · 2026-04-22 23:46:50

78

Views

Example of non-balanced category.

Published on 22 Apr 2026 - 23:46

score 146 · Answer 8 · 2026-04-13 06:00:44

146

Views

Illustrative examples of yet another phenomenon in the logic of mathematical induction

Published on 13 Apr 2026 - 6:00

score 197 · Answer 9 · 2026-04-09 04:48:48

197

Views

Finitely generated torsion-free module which is not torsionless

Published on 09 Apr 2026 - 4:48

score 372 · Answer 10 · 2026-04-14 05:13:45

372

Views

Examples of Complete Atomless Boolean Algebras

Published on 14 Apr 2026 - 5:13

score 1k · Answer 11 · 2026-04-12 14:14:52

1k

Views

An absolutely convergent series of rational numbers which does not converge to a rational number

Published on 12 Apr 2026 - 14:14

score 55 · Answer 12 · 2026-04-13 13:15:11

55

Views

Example of $US$ space that is not $KC$ space.

Published on 13 Apr 2026 - 13:15

score 63 · Answer 13 · 2026-04-12 11:53:11

63

Views

Find an example for $\left\langle H, C_{G}(H)\right\rangle$ is not abelian.

Published on 12 Apr 2026 - 11:53

score 403 · Answer 14 · 2026-04-13 23:07:50

403

Views

Examples of two different vector space topologies with same continuous functionals

Published on 13 Apr 2026 - 23:07

score 33 · Answer 15 · 2026-03-26 01:04:48

Permutation of $x_1,\ldots,x_n$ that gives least $y_1\sigma(x_1)+\ldots$ greater than $x_1y_1+\ldots:$ only two values $x_i,x_j$ must be swapped

List Question

Outer measure does not satisfy countable additivity

prove/disprove that $\lim_{x\to 0}f(x) = 0$

Integrals,tetration, and inequalities such that $\int_{0}^{\infty}x^{-x^{\left(\frac{1}{2}x\right)^{\left(\frac{1}{3}x\right)}}}dx>2$

Example of a subset of $\mathbb{R}^2$ such that U is closed under addition and is closed under scalar multiplication but is not a subspace of R2

Example of a Chief series

Does uniform convergence of continuously differentiable $f_n$ imply point-wise convergence of derivatives?

Example of non-balanced category.

Illustrative examples of yet another phenomenon in the logic of mathematical induction

Finitely generated torsion-free module which is not torsionless

Examples of Complete Atomless Boolean Algebras

An absolutely convergent series of rational numbers which does not converge to a rational number

Example of $US$ space that is not $KC$ space.

Find an example for $\left\langle H, C_{G}(H)\right\rangle$ is not abelian.

Examples of two different vector space topologies with same continuous functionals

Permutation of $x_1,\ldots,x_n$ that gives least $y_1\sigma(x_1)+\ldots$ greater than $x_1y_1+\ldots:$ only two values $x_i,x_j$ must be swapped

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