On the existence of a $\sigma$-closed dense subset

Zapletal, Jindřich. "On the existence of a $\sigma $-closed dense subset." Commentationes Mathematicae Universitatis Carolinae 51.3 (2010): 513-517. <http://eudml.org/doc/38147>.

@article{Zapletal2010,
abstract = {It is consistent with the axioms of set theory that there are two co-dense partial orders, one of them $\sigma $-closed and the other one without a $\sigma $-closed dense subset.},
author = {Zapletal, Jindřich},
journal = {Commentationes Mathematicae Universitatis Carolinae},
keywords = {forcing; sigma-closed dense subset; forcing; -closed dense subset},
language = {eng},
number = {3},
pages = {513-517},
publisher = {Charles University in Prague, Faculty of Mathematics and Physics},
title = {On the existence of a $\sigma $-closed dense subset},
url = {http://eudml.org/doc/38147},
volume = {51},
year = {2010},
}

TY - JOUR
AU - Zapletal, Jindřich
TI - On the existence of a $\sigma $-closed dense subset
JO - Commentationes Mathematicae Universitatis Carolinae
PY - 2010
PB - Charles University in Prague, Faculty of Mathematics and Physics
VL - 51
IS - 3
SP - 513
EP - 517
AB - It is consistent with the axioms of set theory that there are two co-dense partial orders, one of them $\sigma $-closed and the other one without a $\sigma $-closed dense subset.
LA - eng
KW - forcing; sigma-closed dense subset; forcing; -closed dense subset
UR - http://eudml.org/doc/38147
ER -