Miguel Angel Mota Gaytán: Baumgartner’s Conjecture and Bounded Forcing Axioms (Part I)

Abstract: Using some variants of weak club guessing we separate some fragments of the proper forcing axiom: we show that for every two indecomposable ordinals $\alpha < \beta$, the forcing axiom for the class of all the $\beta$-proper posets does not imply the bounded forcing axiom for the class of all the $\alpha$-proper posets.


Set theory seminar, Mexico City, Wednesday October 7, 2015 at  IMATE, UNAM, Salón Graciela Salicrup 16:00.

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