English

A note on ccc forcings

Logic 2008-09-24 v1

Abstract

The aim of this short note is to communicate a simple solution to the problem posed in [1] as Question 7.2.7: is it true that for every ccc σ\sigma-ideal I any I-positive Borel set contains modulo I an I-positive closed set?

Keywords

Cite

@article{arxiv.0809.3860,
  title  = {A note on ccc forcings},
  author = {Marcin Sabok},
  journal= {arXiv preprint arXiv:0809.3860},
  year   = {2008}
}
R2 v1 2026-06-21T11:23:05.861Z