English

On Kuratowski partitions in the Marczewski structure and Ellentuck topology

Logic 2017-11-08 v2

Abstract

We show that large sets in Ellentuck topology (i.e. sets which are not nowhere Ramsey) do not admit Kuratowski's partition. The similar result is true for the Sacks real forcing.

Keywords

Cite

@article{arxiv.1706.08831,
  title  = {On Kuratowski partitions in the Marczewski structure and Ellentuck topology},
  author = {Ryszard Frankiewicz and Joanna Jureczko},
  journal= {arXiv preprint arXiv:1706.08831},
  year   = {2017}
}