Question

Is my understanding of a proof from textbook Introduction to Set Theory by Hrbacek and Jech correct?

score 100 · Answer 1 · 2026-03-26 04:53:43

100

Views

Is my understanding of a proof from textbook Introduction to Set Theory by Hrbacek and Jech correct?

Published on 26 Mar 2026 - 4:53

score 57 · Answer 2 · 2026-03-26 06:28:39

57

Views

Is my understanding of this proof about cardinality correct?

Published on 26 Mar 2026 - 6:28

score 570 · Answer 3 · 2026-03-26 06:28:20

570

Views

A question about a proof of Hausdorff's Formula

Published on 26 Mar 2026 - 6:28

score 56 · Answer 4 · 2026-03-25 07:41:41

56

Views

Commutative Noetherian ring with distinct ideals having distinct index

Published on 25 Mar 2026 - 7:41

score 128 · Answer 5 · 2018-12-30 06:08:09

128

Views

A question about the proof about strongly inaccessible cardinal

Published on 30 Dec 2018 - 6:08

score 107 · Answer 6 · 2018-12-31 10:15:11

107

Views

If $\bigcup_{i=1}^\infty A_i$ has cardinality $\kappa$, then some $A_i$ has cardinality $\kappa$?

Published on 31 Dec 2018 - 10:15

score 4k · Answer 7 · 2019-01-02 15:35:00

4k

Views

Questions about Aleph-Aleph-Null

Published on 02 Jan 2019 - 15:35

score 117 · Answer 8 · 2026-03-25 12:52:00

117

Views

Finite chain condition - Variation of Martin's Axiom statement

Published on 25 Mar 2026 - 12:52

score 160 · Answer 9 · 2019-01-05 11:48:44

160

Views

Proof of the Solovay Theorem in Jech

Published on 05 Jan 2019 - 11:48

score 48 · Answer 10 · 2019-01-06 13:18:23

48

Views

If $A\sim B$(both dedekind infinite), is it then that $A\sim B\cup \{x\}$

Published on 06 Jan 2019 - 13:18

score 91 · Answer 11 · 2019-01-08 18:36:51

91

Views

Let $A_{n}=\left\{ f \in \left\{ 0,1\right\}^{\mathbb N}: f(n)=0 \right\} $

Published on 08 Jan 2019 - 18:36

score 120 · Answer 12 · 2019-01-10 22:11:48

120

Views

Measurable cardinals: non-trivial two-valued measures

Published on 10 Jan 2019 - 22:11

score 142 · Answer 13 · 2019-01-14 19:42:55

142

Views

How does my bijection between the natural numbers and the powerset of natural numbers break down?

Published on 14 Jan 2019 - 19:42

score 316 · Answer 14 · 2019-01-15 12:36:11

316

Views

Cardinal exponentiation without generalized continuum hypothesis

Published on 15 Jan 2019 - 12:36

score 80 · Answer 15 · 2019-01-17 19:50:17

80

Views

weakly normal filters

Published on 17 Jan 2019 - 19:50

List Question

Is my understanding of a proof from textbook Introduction to Set Theory by Hrbacek and Jech correct?

Is my understanding of this proof about cardinality correct?

A question about a proof of Hausdorff's Formula

Commutative Noetherian ring with distinct ideals having distinct index

A question about the proof about strongly inaccessible cardinal

If $\bigcup_{i=1}^\infty A_i$ has cardinality $\kappa$, then some $A_i$ has cardinality $\kappa$?

Questions about Aleph-Aleph-Null

Finite chain condition - Variation of Martin's Axiom statement

Proof of the Solovay Theorem in Jech

If $A\sim B$(both dedekind infinite), is it then that $A\sim B\cup \{x\}$

Let $A_{n}=\left\{ f \in \left\{ 0,1\right\}^{\mathbb N}: f(n)=0 \right\} $

Measurable cardinals: non-trivial two-valued measures

How does my bijection between the natural numbers and the powerset of natural numbers break down?

Cardinal exponentiation without generalized continuum hypothesis

weakly normal filters

Trending Questions

Popular # Hahtags

Popular Questions