Question

$\omega^2$ be of the form $\alpha + \omega$?

score 80 · Answer 1 · 2022-07-07 17:36:50

80

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$\omega^2$ be of the form $\alpha + \omega$?

Published on 07 Jul 2022 - 17:36

score 104 · Answer 2 · 2022-07-09 04:58:41

104

Views

Existence of a real number that cannot be encoded by the truth values in the “worldly-successive” levels of $V$

Published on 09 Jul 2022 - 4:58

score 148 · Answer 3 · 2026-02-23 17:25:31

148

Views

Ordinal embedding in $\mathbb{R}$, and the use of $\mathsf{AC}$

Published on 23 Feb 2026 - 17:25

score 69 · Answer 4 · 2026-03-28 14:55:22

69

Views

Is there an order-preserving injection from $\alpha\cdot\alpha+\omega$ to $\mathcal{P}(|\alpha|)$?

Published on 28 Mar 2026 - 14:55

score 132 · Answer 5 · 2022-07-22 19:27:34

132

Views

The ordered set with all even numbers first, followed by all odd numbers is a computable enumerable set?

Published on 22 Jul 2022 - 19:27

score 61 · Answer 6 · 2022-07-25 22:42:19

Why does $\omega$ have no predecessor, and how do you generalize formulas that require the predecessor of ordinals to limit ordinals?

score 69 · Answer 7 · 2022-08-10 05:22:51

69

Views

Proof in a model via supposition externally made about model

Published on 10 Aug 2022 - 5:22

score 100 · Answer 8 · 2022-08-10 07:19:39

100

Views

What is the name given to the ordinal $\omega\uparrow^\omega\omega$?

Published on 10 Aug 2022 - 7:19

score 183 · Answer 9 · 2022-08-11 04:47:03

183

Views

Analog of the real numbers made from ordinals

Published on 11 Aug 2022 - 4:47

score 210 · Answer 10 · 2026-04-01 08:06:46

210

Views

Do we draw a distinction between a number as an element of the reals, and an element of the naturals?

Published on 01 Apr 2026 - 8:06

score 78 · Answer 11 · 2026-03-28 18:14:10

78

Views

Partially ordered sets and ordinals

Published on 28 Mar 2026 - 18:14

score 39 · Answer 12 · 2022-08-30 16:00:16

39

Views

Ordered set and ordinals

Published on 30 Aug 2022 - 16:00

score 49 · Answer 13 · 2022-09-03 16:18:55

49

Views

Characterization of sum of powers of $\omega$.

Published on 03 Sep 2022 - 16:18

score 74 · Answer 14 · 2026-03-25 20:11:11

74

Views

if $\omega^{\alpha} =A \cup B$ then $A$ or $B$ has order type $\omega^{\alpha}$

Published on 25 Mar 2026 - 20:11

score 126 · Answer 15 · 2022-09-05 10:42:19

126

Views

Supremum of a set of ordinals

Published on 05 Sep 2022 - 10:42

List Question

$\omega^2$ be of the form $\alpha + \omega$?

Existence of a real number that cannot be encoded by the truth values in the “worldly-successive” levels of $V$

Ordinal embedding in $\mathbb{R}$, and the use of $\mathsf{AC}$

Is there an order-preserving injection from $\alpha\cdot\alpha+\omega$ to $\mathcal{P}(|\alpha|)$?

The ordered set with all even numbers first, followed by all odd numbers is a computable enumerable set?

Why does $\omega$ have no predecessor, and how do you generalize formulas that require the predecessor of ordinals to limit ordinals?

Proof in a model via supposition externally made about model

What is the name given to the ordinal $\omega\uparrow^\omega\omega$?

Analog of the real numbers made from ordinals

Do we draw a distinction between a number as an element of the reals, and an element of the naturals?

Partially ordered sets and ordinals

Ordered set and ordinals

Characterization of sum of powers of $\omega$.

if $\omega^{\alpha} =A \cup B$ then $A$ or $B$ has order type $\omega^{\alpha}$

Supremum of a set of ordinals

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