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MLQ
2010
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13 years 10 months ago
Tallness and level by level equivalence and inequivalence
We construct two models containing exactly one supercompact cardinal in which all nonsupercompact measurable cardinals are strictly taller than they are either strongly compact or...
Arthur W. Apter
JSYML
1998
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13 years 11 months ago
Superdestructibility: A Dual to Laver's Indestructibility
Abstract. After small forcing, any <κ-closed forcing will destroy the supercompactness and even the strong compactness of κ. In a delightful argument, Laver [L78] proved that ...
Joel David Hamkins, Saharon Shelah