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Kurepa-trees and Namba-forcing by Koenig, Bernhard; Yoshinobu, Yasuo is a scholarly article available to read on EtoBox.

What is Kurepa-trees and Namba-forcing about?

We show that compact cardinals and {\rm MM} are sensitive to $\lambda$-closed forcings for arbitrarily large $\lambda$. This is done by adding 'regressive' $\lambda$-Kurepa-trees in either case. We argue that the destruction of regressive Kurepa-trees with {\rm MM} requires the use of Namba forcing.

Author

Koenig, Bernhard; Yoshinobu, Yasuo

Published

2006

Language

EN