English

Cofinalities of Marczewski-like ideals

Logic 2016-11-28 v1

Abstract

We show that the cofinalities of both the Miller ideal m^0 (the sigma-ideal naturally related to Miller forcing) and the Laver ideal ell^0 (related to Laver forcing) are larger than the size of the continuum in ZFC.

Cite

@article{arxiv.1611.08143,
  title  = {Cofinalities of Marczewski-like ideals},
  author = {Joerg Brendle and Yurii Khomskii and Wolfgang Wohofsky},
  journal= {arXiv preprint arXiv:1611.08143},
  year   = {2016}
}
R2 v1 2026-06-22T17:03:19.997Z