On extendability to ideals
arXiv:2106.13053
Abstract
Answering in negative a question of M. Hrušák, we construct a Borel ideal not extendable to any ideal and such that it is not Katětov above the ideal .
arXiv:2106.13053
Answering in negative a question of M. Hrušák, we construct a Borel ideal not extendable to any ideal and such that it is not Katětov above the ideal .