Question

Proof Check for General Topology of Topological Groups

score 388 · Answer 1 · 2026-04-08 19:00:11

388

Views

Proof Check for General Topology of Topological Groups

Published on 08 Apr 2026 - 19:00

score 324 · Answer 2 · 2026-04-09 02:45:37

324

Views

How to prove the product of totally bounded uniform spaces is totally bounded?

Published on 09 Apr 2026 - 2:45

score 1.3k · Answer 3 · 2026-04-09 09:39:26

1.3k

Views

What is a compact set?

Published on 09 Apr 2026 - 9:39

score 232 · Answer 4 · 2018-07-18 10:34:35

232

Views

how to use denseness of $\mathbb{Q}$ in this question?

Published on 18 Jul 2018 - 10:34

score 224 · Answer 5 · 2026-04-10 21:32:19

224

Views

Zero content - geometric interpretation

Published on 10 Apr 2026 - 21:32

score 244 · Answer 6 · 2018-07-18 19:19:28

244

Views

Why the rationals do not form a countable intersection of open sets?

Published on 18 Jul 2018 - 19:19

score 1.1k · Answer 7 · 2018-07-18 20:15:20

1.1k

Views

Limit point of the closed set $[0,1]$

Published on 18 Jul 2018 - 20:15

score 84 · Answer 8 · 2026-03-29 03:35:58

84

Views

connectedness of conjugacy classes of a fixed matrix $A$ but with the first column invariant

Published on 29 Mar 2026 - 3:35

score 760 · Answer 9 · 2026-03-25 09:39:58

760

Views

Criteria of a trivial G bundle of a 3-manifold

Published on 25 Mar 2026 - 9:39

score 16 · Answer 10 · 2018-07-19 05:21:42

16

Views

Why in uniform space contains small sets should be nonempty meets?

Published on 19 Jul 2018 - 5:21

score 476 · Answer 11 · 2026-03-28 11:33:31

476

Views

Pushout exists in category of pointed topological spaces

Published on 28 Mar 2026 - 11:33

score 751 · Answer 12 · 2026-03-28 23:10:32

751

Views

A subset $A\subset \mathbb R^n$ is compact iff every nested sequence of relatively closed, non-empty subsets of $A$ has non-empty intersection.

Published on 28 Mar 2026 - 23:10

score 352 · Answer 13 · 2026-04-10 21:23:49

352

Views

What's $\mathbb{R}$ doing in the definition of a metric space?

Published on 10 Apr 2026 - 21:23

score 29 · Answer 14 · 2026-03-25 07:45:46

29

Views

If all slices of a subset of a product have covering dimension $n$, does the set have dimension $2n$?

Published on 25 Mar 2026 - 7:45

score 174 · Answer 15 · 2026-03-25 09:26:33

174

Views

Bockstein homomorphim and obstruction of spin-c structure

Published on 25 Mar 2026 - 9:26

List Question

Proof Check for General Topology of Topological Groups

How to prove the product of totally bounded uniform spaces is totally bounded?

What is a compact set?

how to use denseness of $\mathbb{Q}$ in this question?

Zero content - geometric interpretation

Why the rationals do not form a countable intersection of open sets?

Limit point of the closed set $[0,1]$

connectedness of conjugacy classes of a fixed matrix $A$ but with the first column invariant

Criteria of a trivial G bundle of a 3-manifold

Why in uniform space contains small sets should be nonempty meets?

Pushout exists in category of pointed topological spaces

A subset $A\subset \mathbb R^n$ is compact iff every nested sequence of relatively closed, non-empty subsets of $A$ has non-empty intersection.

What's $\mathbb{R}$ doing in the definition of a metric space?

If all slices of a subset of a product have covering dimension $n$, does the set have dimension $2n$?

Bockstein homomorphim and obstruction of spin-c structure

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