English

Properness under closed forcing

Logic 2019-08-06 v2

Abstract

For every uncountable regular κ\kappa, we give two examples of proper posets which turn improper in some κ\kappa-closed forcing extension.

Keywords

Cite

@article{arxiv.1904.11168,
  title  = {Properness under closed forcing},
  author = {Yasuo Yoshinobu},
  journal= {arXiv preprint arXiv:1904.11168},
  year   = {2019}
}

Comments

7 pages, LaTeX, minor revision