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JSYML
2002
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14 years 4 days ago
Forcing and Stable Ordered-Union Ultrafilters
We investigate the effect of a variant of Matet forcing on ultrafilters in the ground model and give a characterization of those P
Todd Eisworth
JSYML
2008
45views more  JSYML 2008»
14 years 13 days ago
Internal consistency and global co-stationarity of the ground model
Global co-stationarity of the ground model from an 2-c.c. forcing which adds a new subset of 1 is internally consistent relative to an 1-Erdos hyperstrong cardinal and a sufficient...
Natasha Dobrinen, Sy-David Friedman