A regular non-weakly discretely generated P-space
- Autori: Spadaro S.; Szeptycki P.
- Anno di pubblicazione: 2022
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/569325
Abstract
We construct a consistent example of a topological space Y= X∪ {∞} such that: (1) Y is regular. (2) Every Gδ subset of Y is open. (3) The point ∞ is not isolated, but it is not in the closure of any discretesubset of X.