19 citations · 126 across the 23 of their papers we have counts for
Showing 2009 · math.LOShow all
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math.LO2009★ 2 cited
Non-elementary proper forcing
Jakob Kellner
We introduce a simplified framework for ord-transitive models and Shelah's non elementary proper (nep) theory. We also introduce a new construction for the countable support nep it…
math.LO2009★ 1 cited
More on the pressing down game
Jakob Kellner, Saharon Shelah
We investigate the pressing down game and its relation to the Banach Mazur game. In particular we show: Consistently, there is a nowhere precipitous normal ideal on …