English

A note on the normal filters extension property

Logic 2019-10-30 v2

Abstract

We show that if λ<κ=λ\lambda^{<\kappa} = \lambda and every normal filter on PκλP_\kappa\lambda can be extended to a κ\kappa-complete ultrafilter then so does every κ\kappa-complete filter on λ\lambda. This answers a question of Gitik.

Keywords

Cite

@article{arxiv.1909.00624,
  title  = {A note on the normal filters extension property},
  author = {Yair Hayut},
  journal= {arXiv preprint arXiv:1909.00624},
  year   = {2019}
}

Comments

4 pages

R2 v1 2026-06-23T11:02:59.537Z