Question

Does $L_\alpha\prec L_{\kappa^+}$?

score 79 · Answer 1 · 2026-03-25 07:47:22

79

Views

Does $L_\alpha\prec L_{\kappa^+}$?

Published on 25 Mar 2026 - 7:47

score 191 · Answer 2 · 2018-05-05 06:42:39

191

Views

Does $\kappa \lt \lambda$ implie $cf\kappa \lt cf\lambda$ for singular cardinals?

Published on 05 May 2018 - 6:42

score 233 · Answer 3 · 2018-05-07 17:43:29

233

Views

Proving equality of cardinality two sets

Published on 07 May 2018 - 17:43

score 326 · Answer 4 · 2026-03-25 11:07:03

326

Views

Cofinality of a limit ordinal is equal to the cofinality of a given normal operation - Proof

Published on 25 Mar 2026 - 11:07

score 127 · Answer 5 · 2018-05-10 22:27:12

127

Views

How do I denote the Cartesian square of the set of all functions from $X \to Y$

Published on 10 May 2018 - 22:27

score 90 · Answer 6 · 2018-05-10 22:44:25

90

Views

Viewing lower cardinality subsets as null sets

Published on 10 May 2018 - 22:44

score 265 · Answer 7 · 2026-03-25 06:05:51

265

Views

Is CH independent of TG?

Published on 25 Mar 2026 - 6:05

score 164 · Answer 8 · 2018-05-14 16:08:52

164

Views

Diagram used to prove if $A_i$ are countable then $\bigcup\limits^{\infty}A_i$ is countable

Published on 14 May 2018 - 16:08

score 349 · Answer 9 · 2018-05-15 00:33:24

349

Views

How does the Axiom of Choice affect the ability to determine that $|\mathcal{P}(\omega)|$ is an uncountable cardinal

Published on 15 May 2018 - 0:33

score 109 · Answer 10 · 2018-05-15 10:59:06

109

Views

prove that $|{\{X\subseteq\mathbb{N}|\ |\mathrm{X|={\aleph_{0}}}\}}| = 2^{\aleph_{0}}$

Published on 15 May 2018 - 10:59

score 152 · Answer 11 · 2018-05-19 18:00:53

152

Views

Why do we need classes to list all cardinal numbers?

Published on 19 May 2018 - 18:00

score 691 · Answer 12 · 2026-03-25 09:26:17

691

Views

Is the cardinality of two countably infinite, order-isomorphic sets equal?

Published on 25 Mar 2026 - 9:26

score 108 · Answer 13 · 2018-05-21 11:57:34

108

Views

Cardinality of fin of superstructure?

Published on 21 May 2018 - 11:57

score 107 · Answer 14 · 2018-05-22 08:00:39

107

Views

Determine whether or not $card(A^B)>card(C^D)$?

Published on 22 May 2018 - 8:00

score 523 · Answer 15 · 2026-03-22 08:55:41

523

Views

How do I call cardinality in type theory?

Published on 22 Mar 2026 - 8:55

List Question

Does $L_\alpha\prec L_{\kappa^+}$?

Does $\kappa \lt \lambda$ implie $cf\kappa \lt cf\lambda$ for singular cardinals?

Proving equality of cardinality two sets

Cofinality of a limit ordinal is equal to the cofinality of a given normal operation - Proof

How do I denote the Cartesian square of the set of all functions from $X \to Y$

Viewing lower cardinality subsets as null sets

Is CH independent of TG?

Diagram used to prove if $A_i$ are countable then $\bigcup\limits^{\infty}A_i$ is countable

How does the Axiom of Choice affect the ability to determine that $|\mathcal{P}(\omega)|$ is an uncountable cardinal

prove that $|{\{X\subseteq\mathbb{N}|\ |\mathrm{X|={\aleph_{0}}}\}}| = 2^{\aleph_{0}}$

Why do we need classes to list all cardinal numbers?

Is the cardinality of two countably infinite, order-isomorphic sets equal?

Cardinality of fin of superstructure?

Determine whether or not $card(A^B)>card(C^D)$?

How do I call cardinality in type theory?

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