The complexity of non-stationary ideals
Logic
2024-04-18 v2
Abstract
We present an overview of results on the question of whether the non-stationary ideal of an uncountable regular cardinal can be defined by a -formula using parameters of hereditary cardinality at most . These results show that this question is deeply connected to several central topics of current research in set theory.
Cite
@article{arxiv.2404.03315,
title = {The complexity of non-stationary ideals},
author = {Philipp Lücke},
journal= {arXiv preprint arXiv:2404.03315},
year = {2024}
}
Comments
Survey paper. Revised version. 26 pages