English

Supersaturated ideals

Logic 2021-07-01 v1

Abstract

A σ\sigma-ideal I\cal{I} on a set XX is supersaturated if for every family F\cal{F} of I\cal{I}-positive sets with F<add(I)|\cal{F}| < \mathrm{add}(\cal{I}), there exists a countable set that meets every set in F\cal{F}. We show that many well-known ccc forcings preserve supersaturation. We also show that the existence of supersaturated ideals is independent of ZFC plus "There exists an ω1\omega_1-saturated σ\sigma-ideal".

Keywords

Cite

@article{arxiv.2106.15663,
  title  = {Supersaturated ideals},
  author = {Ashutosh Kumar and Dilip Raghavan},
  journal= {arXiv preprint arXiv:2106.15663},
  year   = {2021}
}

Comments

11 pages, submitted

R2 v1 2026-06-24T03:44:11.197Z