"Downward Transference of Mice and Universality of Local Core Models" by Andrés Eduardo Caicedo and Martin Zeman
 

Downward Transference of Mice and Universality of Local Core Models

Document Type

Article

Publication Date

6-2017

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Abstract

If M is a proper class inner model of ZFC and , then every sound mouse projecting to ω and not past 0 belongs to M. In fact, under the assumption that 0 does not belong to M, KMǁω2 is universal for all countable mice in V.

Similarly, if M is a proper class inner model of ZFC, δ > ω1 is regular, (δ +) M = δ + and in V there is no proper class inner model with a Woodin cardinal, then KMǁδ is universal for all mice in V of cardinality less than δ.

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