Question

Non-isomorphic structures of the same cardinality which are elementary equivalent

score 3k · Answer 1 · 2017-06-20 14:16:17

3k

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Non-isomorphic structures of the same cardinality which are elementary equivalent

Published on 20 Jun 2017 - 14:16

score 413 · Answer 2 · 2017-06-21 12:53:59

413

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Real Numbers are Uncountable/Set-Theoretical Approach: Proof 1

Published on 21 Jun 2017 - 12:53

score 184 · Answer 3 · 2017-06-21 13:02:08

184

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Real Numbers are Uncountable/Set-Theoretical Approach: Proof 2

Published on 21 Jun 2017 - 13:02

score 128 · Answer 4 · 2017-06-22 01:37:24

128

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$f : [0, 1] \rightarrow \text{ cardinals }$

Published on 22 Jun 2017 - 1:37

score 59 · Answer 5 · 2017-06-23 04:01:34

59

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Show that $\left| A \right| = \left|B \right|$.

Published on 23 Jun 2017 - 4:01

score 66 · Answer 6 · 2017-06-26 17:45:43

66

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About $\alpha$-indecomposability.

Published on 26 Jun 2017 - 17:45

score 229 · Answer 7 · 2017-07-03 14:30:37

229

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How many non-isomorphic groups of infinite order $|X|$ are there?

Published on 03 Jul 2017 - 14:30

score 1.6k · Answer 8 · 2017-07-05 10:20:27

1.6k

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Is there anything in real world (nature) which is uncountable ( i. e. infinite but not countably infinite)?

Published on 05 Jul 2017 - 10:20

score 858 · Answer 9 · 2017-07-06 21:34:40

858

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Given that the rationals are countable and the denseness of $\mathbb{Q}$ in $\mathbb{R}$ how can $\mathbb{R}$ be uncountable?

Published on 06 Jul 2017 - 21:34

score 101 · Answer 10 · 2017-07-07 01:14:20

101

Views

Help on question regarding proper classes and class of ordinals

Published on 07 Jul 2017 - 1:14

score 436 · Answer 11 · 2026-03-29 05:10:47

436

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Forcing theory / Cardinal preservation

Published on 29 Mar 2026 - 5:10

score 138 · Answer 12 · 2017-07-10 07:09:41

138

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Concerning strong limit cardinals

Published on 10 Jul 2017 - 7:09

score 94 · Answer 13 · 2026-03-29 03:36:01

94

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$\cal P(\omega)/fin$, automorphism, number of, $\aleph_1$,CH

Published on 29 Mar 2026 - 3:36

score 1.3k · Answer 14 · 2017-07-13 19:04:30

1.3k

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Rudin proof: $\mathbb{Q}$ is countable

Published on 13 Jul 2017 - 19:04

score 10.4k · Answer 15 · 2017-07-13 19:48:49

10.4k

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The cartesian product of a finite amount of countable sets is countable.

Published on 13 Jul 2017 - 19:48

List Question

Non-isomorphic structures of the same cardinality which are elementary equivalent

Real Numbers are Uncountable/Set-Theoretical Approach: Proof 1

Real Numbers are Uncountable/Set-Theoretical Approach: Proof 2

$f : [0, 1] \rightarrow \text{ cardinals }$

Show that $\left| A \right| = \left|B \right|$.

About $\alpha$-indecomposability.

How many non-isomorphic groups of infinite order $|X|$ are there?

Is there anything in real world (nature) which is uncountable ( i. e. infinite but not countably infinite)?

Given that the rationals are countable and the denseness of $\mathbb{Q}$ in $\mathbb{R}$ how can $\mathbb{R}$ be uncountable?

Help on question regarding proper classes and class of ordinals

Forcing theory / Cardinal preservation

Concerning strong limit cardinals

$\cal P(\omega)/fin$, automorphism, number of, $\aleph_1$,CH

Rudin proof: $\mathbb{Q}$ is countable

The cartesian product of a finite amount of countable sets is countable.

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