Question

Precision on the Baire property

score 119 · Answer 1 · 2026-04-09 02:49:53

119

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Precision on the Baire property

Published on 09 Apr 2026 - 2:49

score 260 · Answer 2 · 2026-04-17 06:10:29

260

Views

Does ZFC + the Axiom of Constructibility imply the nonexistence of inaccessible cardinals?

Published on 17 Apr 2026 - 6:10

score 78 · Answer 3 · 2026-04-02 01:14:55

78

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Question about set theory and first order logic

Published on 02 Apr 2026 - 1:14

score 885 · Answer 4 · 2026-04-15 07:46:43

Fixed point, union of $\aleph_0, \aleph_{\aleph_0},\aleph_{\aleph_{\aleph_0}}\dots$ [see Noah's comment on notation]

score 1.1k · Answer 5 · 2026-04-16 10:35:54

1.1k

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$|A|=|A\cup B|$, where A infinite and B countable

Published on 16 Apr 2026 - 10:35

score 191 · Answer 6 · 2026-04-11 07:46:25

191

Views

Closed set of ordinals

Published on 11 Apr 2026 - 7:46

score 28 · Answer 7 · 2026-04-15 00:30:14

28

Views

Operations that can be performed in NBG

Published on 15 Apr 2026 - 0:30

score 81 · Answer 8 · 2026-04-14 08:29:03

81

Views

Inaccessibility in L vs. Inaccessibility in ZFC

Published on 14 Apr 2026 - 8:29

score 370 · Answer 9 · 2026-04-09 01:59:55

370

Views

Proof that the cofinality of the least worldly cardinal is $\omega$

Published on 09 Apr 2026 - 1:59

score 115 · Answer 10 · 2026-04-14 10:34:07

115

Views

Ordinals trichotomy property

Published on 14 Apr 2026 - 10:34

score 688 · Answer 11 · 2026-04-11 06:10:10

688

Views

Proof verification for no bijection between a finite set and a proper subset of it.

Published on 11 Apr 2026 - 6:10

score 40 · Answer 12 · 2026-04-17 05:50:58

40

Views

Canonical name for the partition that a partition of a set induces on its subsets

Published on 17 Apr 2026 - 5:50

score 47 · Answer 13 · 2026-04-12 16:46:35

47

Views

Arbitrary intersection in the language of set theory?

Published on 12 Apr 2026 - 16:46

score 104 · Answer 14 · 2026-04-09 02:07:04

104

Views

Kernel of finitely additive function on $\mathbf{N}$ and Borel sets

Published on 09 Apr 2026 - 2:07

score 131 · Answer 15 · 2026-04-16 15:55:02

131

Views

If $\mathbb{P}\in M$ is atomless and the filter $G$ is $\mathbb{P}$-generic over M, then $G\not\in M$.

Published on 16 Apr 2026 - 15:55

List Question

Precision on the Baire property

Does ZFC + the Axiom of Constructibility imply the nonexistence of inaccessible cardinals?

Question about set theory and first order logic

Fixed point, union of $\aleph_0, \aleph_{\aleph_0},\aleph_{\aleph_{\aleph_0}}\dots$ [see Noah's comment on notation]

$|A|=|A\cup B|$, where A infinite and B countable

Closed set of ordinals

Operations that can be performed in NBG

Inaccessibility in L vs. Inaccessibility in ZFC

Proof that the cofinality of the least worldly cardinal is $\omega$

Ordinals trichotomy property

Proof verification for no bijection between a finite set and a proper subset of it.

Canonical name for the partition that a partition of a set induces on its subsets

Arbitrary intersection in the language of set theory?

Kernel of finitely additive function on $\mathbf{N}$ and Borel sets

If $\mathbb{P}\in M$ is atomless and the filter $G$ is $\mathbb{P}$-generic over M, then $G\not\in M$.

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