Question

Every point in completion of a topological group in closure of a countable subset

score 58 · Answer 1 · 2026-04-14 15:12:27

58

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Every point in completion of a topological group in closure of a countable subset

Published on 14 Apr 2026 - 15:12

score 3.9k · Answer 2 · 2026-04-13 19:39:53

3.9k

Views

Definition of totally bounded set

Published on 13 Apr 2026 - 19:39

score 169 · Answer 3 · 2026-04-14 15:54:42

169

Views

Showing a map from the Cantor set to the Cantor set is continuous

Published on 14 Apr 2026 - 15:54

score 1.4k · Answer 4 · 2026-04-12 09:34:02

1.4k

Views

Surjectivity of a continuous map implies surjectivity on $\pi_1$

Published on 12 Apr 2026 - 9:34

score 194 · Answer 5 · 2026-04-15 07:00:00

194

Views

Metrics that define different topologies

Published on 15 Apr 2026 - 7:00

score 1.1k · Answer 6 · 2026-04-14 04:52:09

1.1k

Views

Compact Operator and Unit Ball in C([0,1])

Published on 14 Apr 2026 - 4:52

score 231 · Answer 7 · 2026-04-13 16:25:57

231

Views

Definition of Hausdorff space and please check my proof

Published on 13 Apr 2026 - 16:25

score 1k · Answer 8 · 2026-04-15 16:50:32

Let X be topological space and let $Y\subset X$ have subspace topology if A is closed in Y and Y is Closed in X then A is closed in X

score 388 · Answer 9 · 2026-04-17 14:20:34

388

Views

All the parallel to X-axis lines form a subbasis of $\mathbb{R}^2$, determine the open sets

Published on 17 Apr 2026 - 14:20

score 334 · Answer 10 · 2026-04-13 18:01:02

334

Views

How to prove that the symmetric product $SP^{n}(\mathbb{C})$ of the complex plane $\mathbb{C}$ is homeomorphic to $\mathbb{C}^{n}$.

Published on 13 Apr 2026 - 18:01

score 66 · Answer 11 · 2026-04-12 11:42:09

66

Views

In a CW complex, what is the closure of a cell $e_{\alpha}^n$?

Published on 12 Apr 2026 - 11:42

score 470 · Answer 12 · 2026-04-16 18:18:17

470

Views

Homotopic curves

Published on 16 Apr 2026 - 18:18

score 224 · Answer 13 · 2026-04-12 16:58:32

224

Views

Open cover of $[0,1]$

Published on 12 Apr 2026 - 16:58

score 42 · Answer 14 · 2026-04-17 06:09:11

42

Views

Path Connections in Coarse Finite Topologies

Published on 17 Apr 2026 - 6:09

score 583 · Answer 15 · 2026-04-17 11:07:22

583

Views

Show that sum of the two closed sets in $\mathbb{R^2}$ is not closed.

Published on 17 Apr 2026 - 11:07

List Question

Every point in completion of a topological group in closure of a countable subset

Definition of totally bounded set

Showing a map from the Cantor set to the Cantor set is continuous

Surjectivity of a continuous map implies surjectivity on $\pi_1$

Metrics that define different topologies

Compact Operator and Unit Ball in C([0,1])

Definition of Hausdorff space and please check my proof

Let X be topological space and let $Y\subset X$ have subspace topology if A is closed in Y and Y is Closed in X then A is closed in X

All the parallel to X-axis lines form a subbasis of $\mathbb{R}^2$, determine the open sets

How to prove that the symmetric product $SP^{n}(\mathbb{C})$ of the complex plane $\mathbb{C}$ is homeomorphic to $\mathbb{C}^{n}$.

In a CW complex, what is the closure of a cell $e_{\alpha}^n$?

Homotopic curves

Open cover of $[0,1]$

Path Connections in Coarse Finite Topologies

Show that sum of the two closed sets in $\mathbb{R^2}$ is not closed.

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