Faculty Publications
On Perfect Pre-Images Of Ω1
Document Type
Article
Keywords
Countable tightness, Pre-images of ω 1, Proper forcing axiom, Totally proper forcing
Journal/Book/Conference Title
Topology and its Applications
Volume
125
Issue
2
First Page
263
Last Page
278
Abstract
We show that PFA implies that every perfect pre-image of ω1 of countable tightness contains a closed copy of ω1. © 2001 Elsevier Science B.V. All rights reserved.
Department
Department of Mathematics
Original Publication Date
11-10-2002
DOI of published version
10.1016/S0166-8641(01)00280-2
Recommended Citation
Eisworth, Todd, "On Perfect Pre-Images Of Ω1" (2002). Faculty Publications. 3375.
https://scholarworks.uni.edu/facpub/3375
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