No minimal tall Borel ideal in the Kat\v{e}tov order
Logic
2017-08-18 v1
Abstract
Answering a question of the second listed author we show that there is no tall Borel ideal minimal among all tall Borel ideals in the Kat\v{e}tov order.
Keywords
Cite
@article{arxiv.1708.05322,
title = {No minimal tall Borel ideal in the Kat\v{e}tov order},
author = {Jan Grebík and Michael Hrušák},
journal= {arXiv preprint arXiv:1708.05322},
year = {2017}
}