1. HOD
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Problem 1.2.
[Poveda]- Is it consistent that every uncountable regular cardinal is supercompact in HOD?
- What about \kappa^+ is supercompact in HOD whenever \kappa is singular strong limit of uncountable cofinality.
(Shelah) For such a kappa, there exists X\subseteq\kappa such that \mathcal{P}(\kappa)\subseteq\text{HOD}_X. In particular, \kappa^+ cannot be supercompact in HOD. - Is it consistent that every uncountable regular cardinal is supercompact in HOD?
Cite this as: AimPL: From ℵ2 to infinity, available at http://aimpl.org/alephtwo.