Question

Regularity in finitist models?

score 71 · Answer 1 · 2026-04-05 21:32:00

71

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Regularity in finitist models?

Published on 05 Apr 2026 - 21:32

score 23 · Answer 2 · 2026-04-11 07:57:06

23

Views

partition of an infinite set with copies

Published on 11 Apr 2026 - 7:57

score 135 · Answer 3 · 2026-04-16 09:31:58

135

Views

Do there exist any subsets of $\mathbb{R}$ with positive measure but not of size continuum?

Published on 16 Apr 2026 - 9:31

score 1.7k · Answer 4 · 2026-04-15 09:02:07

1.7k

Views

A "countable Zorn's lemma"?

Published on 15 Apr 2026 - 9:02

score 415 · Answer 5 · 2026-04-14 05:39:28

415

Views

Reference Request: Set Theory graduate introduction

Published on 14 Apr 2026 - 5:39

score 99 · Answer 6 · 2026-04-15 14:21:59

99

Views

Understanding a function $F$ from the Cartesian product $\aleph^{M}_2\times \aleph_0$ into the set $2=\{0, 1\}$

Published on 15 Apr 2026 - 14:21

score 141 · Answer 7 · 2026-04-11 19:47:50

141

Views

How can we write the sentence '$x$ is a set' in the language of set theory

Published on 11 Apr 2026 - 19:47

score 499 · Answer 8 · 2026-04-16 04:48:48

499

Views

Is there an endofunctor of the category of sets that maps $\kappa$ to $\kappa^+$?

Published on 16 Apr 2026 - 4:48

score 927 · Answer 9 · 2026-04-06 12:00:32

927

Views

How/why does Gödel's incompletness theorem apply to set theory?

Published on 06 Apr 2026 - 12:00

score 133 · Answer 10 · 2026-04-16 09:08:59

133

Views

Upper bound of set of ordinals

Published on 16 Apr 2026 - 9:08

score 271 · Answer 11 · 2026-04-14 03:57:03

271

Views

Unrestricted comprehension + regularity

Published on 14 Apr 2026 - 3:57

score 48 · Answer 12 · 2026-04-12 23:36:31

48

Views

Axiom to construct a family of sets

Published on 12 Apr 2026 - 23:36

score 358 · Answer 13 · 2026-04-13 12:14:49

358

Views

Is there a hidden use of choice in the proof of the Bolzano–Weierstrass theorem?

Published on 13 Apr 2026 - 12:14

score 62 · Answer 14 · 2026-04-15 03:21:46

62

Views

Prove that $\forall x\subset M, \exists y\in M (x\subseteq y)$

Published on 15 Apr 2026 - 3:21

score 424 · Answer 15 · 2026-04-14 00:07:53

424

Views

On Cardinalities of Finite Sets

Published on 14 Apr 2026 - 0:07

List Question

Regularity in finitist models?

partition of an infinite set with copies

Do there exist any subsets of $\mathbb{R}$ with positive measure but not of size continuum?

A "countable Zorn's lemma"?

Reference Request: Set Theory graduate introduction

Understanding a function $F$ from the Cartesian product $\aleph^{M}_2\times \aleph_0$ into the set $2=\{0, 1\}$

How can we write the sentence '$x$ is a set' in the language of set theory

Is there an endofunctor of the category of sets that maps $\kappa$ to $\kappa^+$?

How/why does Gödel's incompletness theorem apply to set theory?

Upper bound of set of ordinals

Unrestricted comprehension + regularity

Axiom to construct a family of sets

Is there a hidden use of choice in the proof of the Bolzano–Weierstrass theorem?

Prove that $\forall x\subset M, \exists y\in M (x\subseteq y)$

On Cardinalities of Finite Sets

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