Question

What is the degree of a real closure of an ordered field?

score 437 · Answer 1 · 2026-03-26 05:55:55

437

Views

What is the degree of a real closure of an ordered field?

Published on 26 Mar 2026 - 5:55

score 287 · Answer 2 · 2015-05-13 11:32:09

287

Views

Are cardinal numbers sets in ZFC?

Published on 13 May 2015 - 11:32

score 863 · Answer 3 · 2026-03-31 16:55:22

863

Views

Is the logarithm of $\aleph_0$ infinite?

Published on 31 Mar 2026 - 16:55

score 671 · Answer 4 · 2015-05-14 04:12:11

671

Views

Show that if a metric space is complete, separable and not countable then it has cardinal $\aleph_1$

Published on 14 May 2015 - 4:12

score 406 · Answer 5 · 2026-04-03 00:59:51

406

Views

How to prove that $\sf CH$ implies $2^{\aleph_0}=\aleph_1$

Published on 03 Apr 2026 - 0:59

score 43 · Answer 6 · 2015-05-15 22:01:40

43

Views

Can every infinite cardinal $\mu$ such that $\kappa\leq\mu\leq2^\kappa$ be expressed as $\kappa^\lambda$?

Published on 15 May 2015 - 22:01

score 1.8k · Answer 7 · 2015-05-16 16:14:01

1.8k

Views

Cardinality of the set of finite sets in the power set of natural numbers

Published on 16 May 2015 - 16:14

score 93 · Answer 8 · 2026-03-30 07:28:19

93

Views

Given the axiom of choice, are cardinals ordinals?

Published on 30 Mar 2026 - 7:28

score 154 · Answer 9 · 2026-04-03 01:03:18

154

Views

If $|A|<|B|$ does $B$ surject onto $\aleph(A)$?

Published on 03 Apr 2026 - 1:03

score 814 · Answer 10 · 2015-05-17 05:29:06

814

Views

Is the collection of all cardinalities a set or a proper class?

Published on 17 May 2015 - 5:29

score 389 · Answer 11 · 2026-04-03 04:53:53

389

Views

Existence of infinite set and axiom schema of replacement imply axiom of infinity

Published on 03 Apr 2026 - 4:53

score 342 · Answer 12 · 2015-05-19 12:03:37

342

Views

How to prove that $C\cdot\aleph_0=C$

Published on 19 May 2015 - 12:03

score 1k · Answer 13 · 2015-05-20 01:04:40

1k

Views

Are there more groups than rings?

Published on 20 May 2015 - 1:04

score 119 · Answer 14 · 2015-05-20 05:00:24

119

Views

Is this behavior of the continuum function consistent with ZFC.

Published on 20 May 2015 - 5:00

score 6.8k · Answer 15 · 2015-05-21 10:05:42

6.8k

Views

Proving $k^{m+l} = k^m k^l$ by constructing a bijective function F : $ ^MK \times ^LK \to ^{L\bigcup M}K $

Published on 21 May 2015 - 10:05

List Question

What is the degree of a real closure of an ordered field?

Are cardinal numbers sets in ZFC?

Is the logarithm of $\aleph_0$ infinite?

Show that if a metric space is complete, separable and not countable then it has cardinal $\aleph_1$

How to prove that $\sf CH$ implies $2^{\aleph_0}=\aleph_1$

Can every infinite cardinal $\mu$ such that $\kappa\leq\mu\leq2^\kappa$ be expressed as $\kappa^\lambda$?

Cardinality of the set of finite sets in the power set of natural numbers

Given the axiom of choice, are cardinals ordinals?

If $|A|<|B|$ does $B$ surject onto $\aleph(A)$?

Is the collection of all cardinalities a set or a proper class?

Existence of infinite set and axiom schema of replacement imply axiom of infinity

How to prove that $C\cdot\aleph_0=C$

Are there more groups than rings?

Is this behavior of the continuum function consistent with ZFC.

Proving $k^{m+l} = k^m k^l$ by constructing a bijective function F : $ ^MK \times ^LK \to ^{L\bigcup M}K $

Trending Questions

Popular # Hahtags

Popular Questions