Question

Cardinal Arithmetic - Right or Wrong?

score 66 · Answer 1 · 2017-12-17 16:43:52

66

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Cardinal Arithmetic - Right or Wrong?

Published on 17 Dec 2017 - 16:43

score 93 · Answer 2 · 2017-12-21 20:39:17

93

Views

Cardinal number of a set

Published on 21 Dec 2017 - 20:39

score 530 · Answer 3 · 2026-03-25 14:36:49

530

Views

How are the cardinalities of infinite sets described in systems where the continuum hypothesis doesn't hold?

Published on 25 Mar 2026 - 14:36

score 274 · Answer 4 · 2026-03-26 06:28:27

274

Views

Dimension of $End(V)$ with $V$ countable dimension irreducible module over a complex algebra

Published on 26 Mar 2026 - 6:28

score 72 · Answer 5 · 2017-12-22 17:54:41

72

Views

Injective function from powerset to Kleen star of a set

Published on 22 Dec 2017 - 17:54

score 174 · Answer 6 · 2017-12-22 22:24:28

174

Views

Uncountable-dimension subalgebra of a countable dimension algebra

Published on 22 Dec 2017 - 22:24

score 57 · Answer 7 · 2017-12-23 16:14:38

57

Views

Find all the infinite cardinals $a$ such that $a^4 + 16^a = 16^a$

Published on 23 Dec 2017 - 16:14

score 53 · Answer 8 · 2026-03-29 22:41:17

53

Views

Can we find $\mu<\kappa$ with $2^{\mu^{(n)}}<\sup_{n<\omega}\mu^{(n)}$?

Published on 29 Mar 2026 - 22:41

score 402 · Answer 9 · 2018-01-04 23:02:45

402

Views

cardinality of a set of non-overlapping rectangles on the plane

Published on 04 Jan 2018 - 23:02

score 1.7k · Answer 10 · 2018-01-05 11:02:55

1.7k

Views

What is the 'Algebraic' Dimension of $l^2(\mathbb{N})$?

Published on 05 Jan 2018 - 11:02

score 78 · Answer 11 · 2018-01-08 23:32:58

78

Views

Direct proofs $ 2m < 2^m $ and $ 2^m \not\le m^2 $ for infinite cardinals

Published on 08 Jan 2018 - 23:32

score 40 · Answer 12 · 2018-01-10 13:23:55

40

Views

If $d, e$ are infinite cardinals, then does $2^d \geq 2^e$ imply $d \geq e$?

Published on 10 Jan 2018 - 13:23

score 257 · Answer 13 · 2026-03-29 13:41:15

257

Views

Relations between Connectedness, Compactness, Completeness and the cardinality of the underlying set

Published on 29 Mar 2026 - 13:41

score 185 · Answer 14 · 2018-01-11 22:18:18

185

Views

Prove that if $2^{\aleph_3}<\aleph_\omega$, then $\aleph_\omega^{\aleph_3}=\aleph_\omega^{\aleph_0}$

Published on 11 Jan 2018 - 22:18

score 47.1k · Answer 15 · 2010-07-22 12:07:38

47.1k

Views

Cardinality of set of real continuous functions

Published on 22 Jul 2010 - 12:07

List Question

Cardinal Arithmetic - Right or Wrong?

Cardinal number of a set

How are the cardinalities of infinite sets described in systems where the continuum hypothesis doesn't hold?

Dimension of $End(V)$ with $V$ countable dimension irreducible module over a complex algebra

Injective function from powerset to Kleen star of a set

Uncountable-dimension subalgebra of a countable dimension algebra

Find all the infinite cardinals $a$ such that $a^4 + 16^a = 16^a$

Can we find $\mu<\kappa$ with $2^{\mu^{(n)}}<\sup_{n<\omega}\mu^{(n)}$?

cardinality of a set of non-overlapping rectangles on the plane

What is the 'Algebraic' Dimension of $l^2(\mathbb{N})$?

Direct proofs $ 2m < 2^m $ and $ 2^m \not\le m^2 $ for infinite cardinals

If $d, e$ are infinite cardinals, then does $2^d \geq 2^e$ imply $d \geq e$?

Relations between Connectedness, Compactness, Completeness and the cardinality of the underlying set

Prove that if $2^{\aleph_3}<\aleph_\omega$, then $\aleph_\omega^{\aleph_3}=\aleph_\omega^{\aleph_0}$

Cardinality of set of real continuous functions

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