English

Ramsey regularity implies no MAD families without uniformization

Logic 2025-10-21 v1

Abstract

We show that if the Ramsey property holds (in a class of sets), then there is no MAD family (in this class, provided it satisfies some modest closure properties), proving a conjecture made by A.R.D.\ Mathias in 1977. As the technique we introduce for this proof is useful in a variety of related problems, we take the opportunity to announce 4 theorems, which will be proved in a follow-up paper.

Cite

@article{arxiv.2510.17399,
  title  = {Ramsey regularity implies no MAD families without uniformization},
  author = {Jialiang He and Jintao Luo and Shuguo Zhang},
  journal= {arXiv preprint arXiv:2510.17399},
  year   = {2025}
}

Comments

4 Pages

R2 v1 2026-07-01T06:47:17.436Z