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math.LO2012★ 26 cited
Square principles in Pmax extensions
Andrés Eduardo Caicedo, Paul Larson, Grigor Sargsyan +3
By forcing with over strong models of determinacy, we obtain models where different square principles at and fail. In particular, we obtain a mod…
math.LO2012
Universal Functions
Paul B. Larson, Arnold W. Miller, Juris Steprans +1
A function of two variables F(x,y)is universal iff for every other function G(x,y) there exists functions h(x) and k(y) with G(x,y) = F(h(x),k(y)) Sierpinski showed that assuming t…