English

Does Church-Kleene ordinal $\omega_1^{CK}$ exist?

General Mathematics 2007-05-23 v1

Abstract

A question is proposed if a nonrecursive ordinal, the so-called Church-Kleene ordinal ω1CK\omega_1^{CK} really exists.

Cite

@article{arxiv.math/0307090,
  title  = {Does Church-Kleene ordinal $\omega_1^{CK}$ exist?},
  author = {Hitoshi Kitada},
  journal= {arXiv preprint arXiv:math/0307090},
  year   = {2007}
}

Comments

4 pages, LaTeX

R2 v1 2026-07-22T16:56:01.686Z