Proper forcing and L(ℝ)

Author:

Neeman Itay,Zapletal Jindřich

Abstract

AbstractWe present two ways in which the model L(ℝ) is canonical assuming the existence of large cardinals. We show that the theory of this model, with ordinal parameters, cannot be changed by small forcing: we show further that a set of ordinals in V cannot be added to L(ℝ) by small forcing. The large cardinal needed corresponds to the consistency strength of ADL(ℝ): roughly ω Woodin cardinals.

Publisher

Cambridge University Press (CUP)

Subject

Logic,Philosophy

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