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DESTRUCTIBILITY OF THE TREE PROPERTY AT ${\aleph _{\omega + 1}}$

Published online by Cambridge University Press:  06 March 2019

YAIR HAYUT
Affiliation:
EINSTEIN INSTITUTE OF MATHEMATICS EDMOND J. SAFRA CAMPUS, THE HEBREW UNIVERSITY OF JERUSALEM GIVAT RAM. JERUSALEM, 9190401, ISRAELE-mail: [email protected]
MENACHEM MAGIDOR
Affiliation:
EINSTEIN INSTITUTE OF MATHEMATICS EDMOND J. SAFRA CAMPUS, THE HEBREW UNIVERSITY OF JERUSALEM GIVAT RAM. JERUSALEM, 9190401, ISRAELE-mail: [email protected]

Abstract

We construct a model in which the tree property holds in ${\aleph _{\omega + 1}}$ and it is destructible under $Col\left( {\omega ,{\omega _1}} \right)$. On the other hand we discuss some cases in which the tree property is indestructible under small or closed forcings.

Type
Articles
Copyright
Copyright © The Association for Symbolic Logic 2019 

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References

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