Question

How to prove that Cantor's normal form can produce all ordinal numbers

score 4k · Answer 1 · 2012-09-17 04:32:23

4k

Views

How to prove that Cantor's normal form can produce all ordinal numbers

Published on 17 Sep 2012 - 4:32

score 622 · Answer 2 · 2012-09-17 06:00:15

622

Views

How does one prove that there are uncountable number of countable ordinals?

Published on 17 Sep 2012 - 6:00

score 576 · Answer 3 · 2012-09-17 14:38:20

576

Views

Which axiom shows that a class of all countable ordinals is a set?

Published on 17 Sep 2012 - 14:38

score 317 · Answer 4 · 2012-09-18 07:11:01

317

Views

An inner model and a model that contain same ordinals

Published on 18 Sep 2012 - 7:11

score 570 · Answer 5 · 2012-09-18 08:44:43

570

Views

A set that is not an ordinal

Published on 18 Sep 2012 - 8:44

score 1.5k · Answer 6 · 2012-09-19 11:56:17

1.5k

Views

Which set is unwell-orderable?

Published on 19 Sep 2012 - 11:56

score 262 · Answer 7 · 2026-03-26 02:44:39

262

Views

Equivalent statement of transfinite/ordinal recursion

Published on 26 Mar 2026 - 2:44

score 957 · Answer 8 · 2012-09-26 21:40:37

957

Views

Ordinals with uncountable cofinality

Published on 26 Sep 2012 - 21:40

score 555 · Answer 9 · 2026-03-26 02:47:49

555

Views

Question on the use of a parametric version of Transfinite Recursion Theorem in Introduction to Set Theory 3rd ed. by Hrbacek and Jech

Published on 26 Mar 2026 - 2:47

score 763 · Answer 10 · 2012-10-18 09:24:40

763

Views

Other ways of proving that the set of all countable ordinals is uncountable

Published on 18 Oct 2012 - 9:24

score 697 · Answer 11 · 2012-10-26 16:04:00

697

Views

What is the definition of the well-founded part of a model of set theory?

Published on 26 Oct 2012 - 16:04

score 725 · Answer 12 · 2012-10-28 05:34:52

725

Views

Is there a categorification of (infinite) ordinal arithmetic?

Published on 28 Oct 2012 - 5:34

score 178 · Answer 13 · 2012-11-02 08:10:09

178

Views

What is a notation for the minimal ordinal of $\mathbb{R}$?

Published on 02 Nov 2012 - 8:10

score 513 · Answer 14 · 2012-11-03 08:36:34

513

Views

Possible inaccuracy in Wikipedia article about initial ordinals

Published on 03 Nov 2012 - 8:36

score 5.1k · Answer 15 · 2012-11-04 10:28:20

5.1k

Views

What's the definition of $\omega$?

Published on 04 Nov 2012 - 10:28

List Question

How to prove that Cantor's normal form can produce all ordinal numbers

How does one prove that there are uncountable number of countable ordinals?

Which axiom shows that a class of all countable ordinals is a set?

An inner model and a model that contain same ordinals

A set that is not an ordinal

Which set is unwell-orderable?

Equivalent statement of transfinite/ordinal recursion

Ordinals with uncountable cofinality

Question on the use of a parametric version of Transfinite Recursion Theorem in Introduction to Set Theory 3rd ed. by Hrbacek and Jech

Other ways of proving that the set of all countable ordinals is uncountable

What is the definition of the well-founded part of a model of set theory?

Is there a categorification of (infinite) ordinal arithmetic?

What is a notation for the minimal ordinal of $\mathbb{R}$?

Possible inaccuracy in Wikipedia article about initial ordinals

What's the definition of $\omega$?

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