English

Finite Combinations of Baire Numbers

Logic 2008-02-03 v1

Abstract

Let κ\kappa be a regular cardinal. Consider the Baire numbers of the spaces (2θ)κ(2^{\theta})_\kappa (functions from θ\theta to 2 and the less than κ\kappa topology) for various θκ\theta \geq \kappa. Let l be the number of such different Baire numbers. Models of set theory with l=1 or l=2 are known and it is also known that l is finite. We show here that if κ>ω\kappa > \omega, then l could be any given finite number. We do not know whether the same is true for κ=ω\kappa = \omega.

Keywords

Cite

@article{arxiv.math/9209207,
  title  = {Finite Combinations of Baire Numbers},
  author = {Avner Landver},
  journal= {arXiv preprint arXiv:math/9209207},
  year   = {2008}
}
R2 v1 2026-07-22T17:53:59.155Z