Are a and d your cup of tea?
Logic
2021-08-10 v1
Abstract
We show that, consistently, every MAD family has cardinality strictly bigger than the dominating number, that is a > d, thus solving one of the oldest problems on cardinal invariants of the continuum. The method is a contribution to the theory of iterated forcing for making the continuum large.
Keywords
Cite
@article{arxiv.math/0012170,
title = {Are a and d your cup of tea?},
author = {Saharon Shelah},
journal= {arXiv preprint arXiv:math/0012170},
year = {2021}
}