Regressive Ramsey numbers are Ackermannian
Combinatorics
2009-09-25 v1
Abstract
We give an elementary proof of the fact that regressive Ramsey numbers are Ackermannian. This fact was first proved by Kanamori and McAloon with mathematical logic techniques.
Cite
@article{arxiv.math/9805150,
title = {Regressive Ramsey numbers are Ackermannian},
author = {Menachem Kojman and Saharon Shelah},
journal= {arXiv preprint arXiv:math/9805150},
year = {2009}
}