Question

Methods For Listing Countable Sets

score 139 · Answer 1 · 2018-09-13 22:25:03

139

Views

Methods For Listing Countable Sets

Published on 13 Sep 2018 - 22:25

score 146 · Answer 2 · 2026-03-25 20:06:34

146

Views

2-huge cardinal, the most usual definition

Published on 25 Mar 2026 - 20:06

score 52 · Answer 3 · 2026-03-25 23:21:32

52

Views

Cardinality of reduced products

Published on 25 Mar 2026 - 23:21

score 98 · Answer 4 · 2018-09-18 00:31:57

98

Views

ZF with "double powersets", is there a set with the same size as ℝ?

Published on 18 Sep 2018 - 0:31

score 68 · Answer 5 · 2026-03-25 07:50:16

68

Views

Question on $[\mathbb{N}]^{\omega}$

Published on 25 Mar 2026 - 7:50

score 86 · Answer 6 · 2018-09-18 18:00:13

86

Views

If $A^X$ is equipotent to $B^X$ does it imply that A is equipotent to B?

Published on 18 Sep 2018 - 18:00

score 287 · Answer 7 · 2018-09-18 23:52:13

287

Views

Where can I find a proof of ($\aleph_1 \leq 2^{\aleph_0}$ is independent of ZF)?

Published on 18 Sep 2018 - 23:52

score 640 · Answer 8 · 2018-09-19 05:08:06

640

Views

If $\#(S)<\#(\Bbb N)$, then prove that $S$ is finite, without using the Axiom of Choice.

Published on 19 Sep 2018 - 5:08

score 180 · Answer 9 · 2018-09-19 06:19:13

180

Views

Why is the $\aleph$ hierarchy a discrete hierarchy?

Published on 19 Sep 2018 - 6:19

score 347 · Answer 10 · 2018-09-19 20:32:26

347

Views

Could Hypercomputer solve undecidable problems?

Published on 19 Sep 2018 - 20:32

score 737 · Answer 11 · 2018-09-21 04:20:43

737

Views

Cardinal of a finite set is unique

Published on 21 Sep 2018 - 4:20

score 429 · Answer 12 · 2018-09-21 21:24:50

429

Views

Does any uncountable subset of $\mathbb{R^n}$ have the same cardinality as $\mathbb{R}^m$?

Published on 21 Sep 2018 - 21:24

score 59 · Answer 13 · 2026-03-26 02:45:50

59

Views

What order of infinity is the set of vectors whose components sum to $0$?

Published on 26 Mar 2026 - 2:45

score 127 · Answer 14 · 2018-09-24 16:03:02

127

Views

If $\kappa$ is infinite and $\kappa$ is not a sum of $<\kappa$ cardinals each less than $\kappa$, then $\kappa$ is regular.

Published on 24 Sep 2018 - 16:03

score 204 · Answer 15 · 2018-09-24 18:54:38

204

Views

Cardinality of sets ($\aleph_0$, distinct elements)

Published on 24 Sep 2018 - 18:54

List Question

Methods For Listing Countable Sets

2-huge cardinal, the most usual definition

Cardinality of reduced products

ZF with "double powersets", is there a set with the same size as ℝ?

Question on $[\mathbb{N}]^{\omega}$

If $A^X$ is equipotent to $B^X$ does it imply that A is equipotent to B?

Where can I find a proof of ($\aleph_1 \leq 2^{\aleph_0}$ is independent of ZF)?

If $\#(S)<\#(\Bbb N)$, then prove that $S$ is finite, without using the Axiom of Choice.

Why is the $\aleph$ hierarchy a discrete hierarchy?

Could Hypercomputer solve undecidable problems?

Cardinal of a finite set is unique

Does any uncountable subset of $\mathbb{R^n}$ have the same cardinality as $\mathbb{R}^m$?

What order of infinity is the set of vectors whose components sum to $0$?

If $\kappa$ is infinite and $\kappa$ is not a sum of $<\kappa$ cardinals each less than $\kappa$, then $\kappa$ is regular.

Cardinality of sets ($\aleph_0$, distinct elements)

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