Usuba's extendible cardinal

2021/08/16 by Goldberg, Gabriel
#FOS: Mathematics #Logic (math.LO)

paper · doi:10.48550/arxiv.2108.06903

Abstract

Answering a question of Usuba, we show that an extendible cardinal can be preserved by a set forcing that is not a small forcing.

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• Forcing with overlapping supercompact extenders
• Generically extendible cardinals
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