New posts in ordinals

What are the most prominent uses of transfinite induction outside of set theory?

set-theory big-list ordinals applications transfinite-induction

show that every continuous real-valued function defined on $S_{\mathbb{\Omega}}$ is eventually constant

general-topology ordinals

What are some good open problems about countable ordinals?

soft-question set-theory ordinals infinitary-combinatorics

Uncountable ordinals without power set axiom

set-theory ordinals

Ordinal numbers replacement

python nlp nltk ordinals

Examples of transfinite induction

elementary-set-theory induction ordinals transfinite-induction

For all infinite cardinals $\kappa, \ (\kappa \times \kappa, <_{cw}) \cong (\kappa, \in).$

proof-writing cardinals ordinals elementary-set-theory

Principle of Transfinite Induction

set-theory induction ordinals transfinite-induction

Countable ordinals in the reals

proof-verification set-theory ordinals

Proving that the class of all ordinals is well ordered under $\in$

set-theory ordinals

How is $\epsilon_0$ countable?

elementary-set-theory ordinals

Conflicting definitions of "continuity" of ordinal-valued functions on the ordinals

general-topology set-theory definition ordinals

What is the ordinal number for the set of binary strings ordered lexicographically?

elementary-set-theory ordinals

What ordinals correspond to tuples ordered lexicographically?

logic set-theory order-theory ordinals

A Question about the Cumulative Hierarchy.

set-theory ordinals

Is the class of cardinals totally ordered?

set-theory cardinals ordinals

Definition of Ordinals in Set Theory in Layman Terms

elementary-set-theory ordinals

Intuition for $\omega^\omega$

set-theory intuition ordinals

Is there an easy way to create ordinals in C#?

c# .net ordinals

Countable compact spaces as ordinals

general-topology compactness ordinals descriptive-set-theory