English

Duality Chipped

Logic 2007-05-23 v1

Abstract

Whenever I is a projectively generated projectively defined sigma ideal on the reals, if ZFC+large cardinals proves cov(I)=continuum then ZFC+large cardinals proves non(I)<aleph four.

Cite

@article{arxiv.math/0106201,
  title  = {Duality Chipped},
  author = {Jindrich Zapletal},
  journal= {arXiv preprint arXiv:math/0106201},
  year   = {2007}
}