English

Diamonds

Logic 2010-06-16 v4

Abstract

We prove, e.g., that if lambda=chi^+=2^chi and S subseteq {delta<lambda:cf(delta) neq cf(chi)} is stationary then diamondsuit_lambda holds true.

Cite

@article{arxiv.0711.3030,
  title  = {Diamonds},
  author = {Saharon Shelah},
  journal= {arXiv preprint arXiv:0711.3030},
  year   = {2010}
}
R2 v1 2026-06-21T09:45:04.280Z