Question

Question about cardinality of some set of functions

score 226 · Answer 1 · 2013-04-06 13:16:20

226

Views

Question about cardinality of some set of functions

Published on 06 Apr 2013 - 13:16

score 479 · Answer 2 · 2026-04-02 17:09:31

479

Views

It is possible to generalize the "real" line to be able to embed $\omega_1$ or any uncountable ordinal into a finite segment of it?

Published on 02 Apr 2026 - 17:09

score 638 · Answer 3 · 2013-04-08 00:51:42

638

Views

$P(A)$ and $2^A$ are numerically equivalent

Published on 08 Apr 2013 - 0:51

score 16.7k · Answer 4 · 2013-04-08 04:27:59

16.7k

Views

Cardinality of a set A is strictly less than the cardinality of the power set of A

Published on 08 Apr 2013 - 4:27

score 10.5k · Answer 5 · 2013-04-08 17:30:09

10.5k

Views

Let $A$ be any uncountable set, and let $B$ be a countable subset of $A$. Prove that the cardinality of $A = A - B $

Published on 08 Apr 2013 - 17:30

score 151 · Answer 6 · 2013-04-08 20:18:08

151

Views

"big" Hausdorff space with dense subspace of given cardinality

Published on 08 Apr 2013 - 20:18

score 2.8k · Answer 7 · 2013-04-09 04:07:25

2.8k

Views

Proving every infinite set is a subset of some denumerable set and vice versa

Published on 09 Apr 2013 - 4:07

score 219 · Answer 8 · 2026-03-26 17:13:32

219

Views

About cardinalities of almost disjoint systems of functions

Published on 26 Mar 2026 - 17:13

score 1.9k · Answer 9 · 2013-04-09 17:17:51

1.9k

Views

If $A$ and $B$ are denumerable sets, and $C$ is a ﬁnite set, then $A \cup B \cup C$ is denumerable

Published on 09 Apr 2013 - 17:17

score 137 · Answer 10 · 2013-04-10 01:35:40

137

Views

If CH assumed, can we prove this?

Published on 10 Apr 2013 - 1:35

score 319 · Answer 11 · 2026-03-29 08:18:20

319

Views

Books/Review material on infinite cardinality for undergrad

Published on 29 Mar 2026 - 8:18

score 52 · Answer 12 · 2013-04-10 09:25:54

52

Views

Small claim regarding addition of cardinals

Published on 10 Apr 2013 - 9:25

score 1.3k · Answer 13 · 2026-03-29 14:25:10

1.3k

Views

Is the class of all ordinals independent of set theory?

Published on 29 Mar 2026 - 14:25

score 2.9k · Answer 14 · 2013-04-12 18:31:42

2.9k

Views

minimal infinite sigma algebra

Published on 12 Apr 2013 - 18:31

score 198 · Answer 15 · 2013-04-14 07:21:51

198

Views

Product of a family of spaces of countable tightness

Published on 14 Apr 2013 - 7:21

List Question

Question about cardinality of some set of functions

It is possible to generalize the "real" line to be able to embed $\omega_1$ or any uncountable ordinal into a finite segment of it?

$P(A)$ and $2^A$ are numerically equivalent

Cardinality of a set A is strictly less than the cardinality of the power set of A

Let $A$ be any uncountable set, and let $B$ be a countable subset of $A$. Prove that the cardinality of $A = A - B $

"big" Hausdorff space with dense subspace of given cardinality

Proving every infinite set is a subset of some denumerable set and vice versa

About cardinalities of almost disjoint systems of functions

If $A$ and $B$ are denumerable sets, and $C$ is a ﬁnite set, then $A \cup B \cup C$ is denumerable

If CH assumed, can we prove this?

Books/Review material on infinite cardinality for undergrad

Small claim regarding addition of cardinals

Is the class of all ordinals independent of set theory?

minimal infinite sigma algebra

Product of a family of spaces of countable tightness

Trending Questions

Popular # Hahtags

Popular Questions