# 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 α<β, the forcing axiom for the class of all the β-proper posets does not imply the bounded forcing axiom for the class of all the α-proper posets.

Set theory seminar, Mexico City, Wednesday October 14, 2015 at  IMATE, UNAM, Salón Graciela Salicrup 16:00.