List questions from cardinals

Published on 04 Jul 2014 - 2:12

2.2k

Views

How can you compare the number of real numbers in the interval [0,1] and [0,10]?

Published on 27 Mar 2026 - 18:27

168

Views

Proving there's a set with the cardinality $\mathfrak c$ on the $x$ axis of points that do not belong to the set of disks

Published on 05 Jul 2014 - 12:19

121

Views

A question about cardinal numbers in ZF set theory.

Published on 07 Jul 2014 - 14:08

228

Views

Cardinal Arithmetic, Regular Cardinals, and Exponentiation

Published on 11 Jul 2014 - 13:13

103

Views

Functions with cardinals as domain

Published on 11 Jul 2014 - 17:30

317

Views

Constructing a vector space of dimension $\beth_\omega$

Published on 11 Jul 2014 - 21:20

374

Views

Constructing a Banach space of cardinality $\beth_{\omega+1}$

Published on 12 Jul 2014 - 16:17

544

Views

An injection from $\mathbb{N}$ to $\mathbb{N}^n$.

Published on 12 Jul 2014 - 16:41

773

Views

Does taking the power set give you the "next biggest cardinal"

Published on 14 Jul 2014 - 14:15

908

Views

How to prove there is no surjection $f\colon X \rightarrow 2^X$

Published on 15 Jul 2014 - 1:29

1.3k

Views

$\aleph_\omega$ and large ordinals?

Published on 27 Mar 2026 - 9:48

728

Views

Upper bound on cardinality of a field

Published on 15 Jul 2014 - 21:24

72

Views

Proving $X\sim Y$

Published on 16 Jul 2014 - 15:33

74

Views

Prove $|A| = |B|$

Published on 19 Jul 2014 - 16:09

List Question

$l_{\infty}$ is the quotient of $l_{1}(\aleph_{1})$?

How can you compare the number of real numbers in the interval [0,1] and [0,10]?

Proving there's a set with the cardinality $\mathfrak c$ on the $x$ axis of points that do not belong to the set of disks

A question about cardinal numbers in ZF set theory.

Cardinal Arithmetic, Regular Cardinals, and Exponentiation

Functions with cardinals as domain

Constructing a vector space of dimension $\beth_\omega$

Constructing a Banach space of cardinality $\beth_{\omega+1}$

An injection from $\mathbb{N}$ to $\mathbb{N}^n$.

Does taking the power set give you the "next biggest cardinal"

How to prove there is no surjection $f\colon X \rightarrow 2^X$

$\aleph_\omega$ and large ordinals?

Upper bound on cardinality of a field

Proving $X\sim Y$

Prove $|A| = |B|$

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