Question

intersection of an infinite number of set interiors vs interior of intersection of infinite number of sets

score 131 · Answer 1 · 2026-02-23 08:42:19

131

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intersection of an infinite number of set interiors vs interior of intersection of infinite number of sets

Published on 23 Feb 2026 - 8:42

score 19 · Answer 2 · 2026-02-23 08:38:42

19

Views

Prove that a vertex with minimum degree necessarily a vertex cut

Published on 23 Feb 2026 - 8:38

score 66 · Answer 3 · 2026-02-23 08:41:14

66

Views

Understanding the axioms for neighbourhoods and their independence/consistency

Published on 23 Feb 2026 - 8:41

score 54 · Answer 4 · 2026-02-23 08:41:15

54

Views

How to prove this proposition about collection of continuous functions $\{f_i\}_{i \in I}$?

Published on 23 Feb 2026 - 8:41

score 32 · Answer 5 · 2026-02-23 08:39:33

32

Views

Standardized radius of validity of normal coordinates in differential geometry?

Published on 23 Feb 2026 - 8:39

score 438 · Answer 6 · 2026-02-23 08:36:45

438

Views

Accumulation points and subsequences of sequences

Published on 23 Feb 2026 - 8:36

score 26 · Answer 7 · 2026-02-23 08:37:21

26

Views

Two topology defined by two local basis coincidence

Published on 23 Feb 2026 - 8:37

score 330 · Answer 8 · 2026-02-23 08:42:03

330

Views

Why basis of topological space is union of local basis of topological space?

Published on 23 Feb 2026 - 8:42

score 191 · Answer 9 · 2026-02-23 08:41:14

191

Views

Closed subgroups of profinite groups and basis of neighbourhoods

Published on 23 Feb 2026 - 8:41

score 72 · Answer 10 · 2026-02-23 08:42:18

I think the following property is necessary for the converse part of Theorem 4.2. (N-z) $\mathcal{U}_x\neq\emptyset$ for any $x\in X$. (Willard)

score 62 · Answer 11 · 2026-02-23 08:42:18

62

Views

Does continuity of $f$ at a point require the existence of $f$ in a neighbourhood of that point?

Published on 23 Feb 2026 - 8:42

score 83 · Answer 12 · 2026-02-23 08:37:53

83

Views

Relation between resolvent set, self adjoint and open neighborhood

Published on 23 Feb 2026 - 8:37

score 64 · Answer 13 · 2026-02-23 08:40:55

64

Views

Where did Stephen Wolfram get the idea of an intrinsic dimension of hypergraphs?

Published on 23 Feb 2026 - 8:40

score 35 · Answer 14 · 2026-02-23 08:39:57

35

Views

What terminology to use for this graph neighborhood construction?

Published on 23 Feb 2026 - 8:39

List Question

intersection of an infinite number of set interiors vs interior of intersection of infinite number of sets

Prove that a vertex with minimum degree necessarily a vertex cut

Understanding the axioms for neighbourhoods and their independence/consistency

How to prove this proposition about collection of continuous functions $\{f_i\}_{i \in I}$?

Standardized radius of validity of normal coordinates in differential geometry?

Accumulation points and subsequences of sequences

Two topology defined by two local basis coincidence

Why basis of topological space is union of local basis of topological space?

Closed subgroups of profinite groups and basis of neighbourhoods

I think the following property is necessary for the converse part of Theorem 4.2. (N-z) $\mathcal{U}_x\neq\emptyset$ for any $x\in X$. (Willard)

Does continuity of $f$ at a point require the existence of $f$ in a neighbourhood of that point?

Relation between resolvent set, self adjoint and open neighborhood

Where did Stephen Wolfram get the idea of an intrinsic dimension of hypergraphs?

What terminology to use for this graph neighborhood construction?

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