English

Nice aleph_1 generated non-P-points, I

Logic 2022-10-18 v4

Abstract

We define a family of a (non-principal) ultrafilters on N which are, in a sense, far from P-points. We first under reasonable conditions, prove its existence. In a continuation we shall prove that such a point may exist while no P-point exists.

Keywords

Cite

@article{arxiv.1112.0819,
  title  = {Nice aleph_1 generated non-P-points, I},
  author = {Saharon Shelah},
  journal= {arXiv preprint arXiv:1112.0819},
  year   = {2022}
}
R2 v1 2026-06-21T19:46:06.321Z