A premouse inheriting strong cardinals from VV

preprint2020arXivOpen access

Abstract

We identify a premouse inner model L[E]L[\mathbb{E}], such that for any coarsely iterable background universe RR modelling ZFC\mathrm{ZFC}, L[E]RL[\mathbb{E}]^R is a proper class premouse of RR inheriting all strong and Woodin cardinals from RR. Moreover, for each α∈ORα\in\mathrm{OR}, L[E]R∣αL[\mathbb{E}]^R|α is (ω,α)(ω,α)-iterable, via iteration trees which lift to coarse iteration trees on RR. We prove that (k+1)(k+1)-condensation follows from (k+1)(k+1)-solidity together with (k,ω1+1)(k,ω_1+1)-iterability (that is, roughly, iterability with respect to normal trees). We also prove that a slight weakening of (k+1)(k+1)-condensation follows from (k,ω1+1)(k,ω_1+1)-iterability (without the (k+1)(k+1)-solidity hypothesis). The results depend on the theory of generalizations of bicephali, which we also develop.

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