English

A lower bound on Gowers' FIN_k theorem

Logic 2015-10-08 v1

Abstract

Gowers' FINk_k theorem, also called Gowers' pigeonhole principle or Gowers' theorem, is a Ramsey-type theorem. It first occurred in the study of Banach space theory and is a natural generalization of Hindman's theorem. In this short note, we will show that Gowers' FINk_k theorem does not follow from ACA0_0.

Cite

@article{arxiv.1510.01838,
  title  = {A lower bound on Gowers' FIN_k theorem},
  author = {Alexander P. Kreuzer},
  journal= {arXiv preprint arXiv:1510.01838},
  year   = {2015}
}
R2 v1 2026-06-22T11:14:33.373Z