$\Sigma^1_2$ and $\Pi^1_1$ mad families
Logic
2013-10-14 v1
Abstract
We answer in the affirmative the following question of J\"org Brendle: If there is a mad family, is there then a mad family?
Keywords
Cite
@article{arxiv.1310.3250,
title = {$\Sigma^1_2$ and $\Pi^1_1$ mad families},
author = {Asger Törnquist},
journal= {arXiv preprint arXiv:1310.3250},
year = {2013}
}
Comments
This will appear in the Journal of Symbolic Logic (March 2014)