On ultrafilters in ZF models and indecomposable ultrafilters
Logic
2024-03-15 v1
Abstract
We use indecomposable ultrafilters to answer some questions of Hayut, Karagila paper "Spectra of uniformity". It is shown that the bound on the strength by T. Usuba "A note on uniform ultrafilters in choiceless context" is optimal.
Cite
@article{arxiv.2403.09329,
title = {On ultrafilters in ZF models and indecomposable ultrafilters},
author = {Eilon Bilinsky and Moti Gitik},
journal= {arXiv preprint arXiv:2403.09329},
year = {2024}
}