English

The $\mathsf{HOD}$ Hypothesis and a supercompact cardinal

Logic 2025-10-02 v1

Abstract

In this paper, we prove that: if κ\kappa is supercompact and the HOD\mathsf{HOD} Hypothesis holds, then there is a proper class of regular cardinals in VκV_{\kappa} which are measurable in HOD\mathsf{HOD}. Woodin also proved this result. As a corollary, we prove Woodin's Local Universality Theorem. This work shows that under the assumption of the HOD\mathsf{HOD} Hypothesis and supercompact cardinals, large cardinals in V\mathsf{V} are reflected to be large cardinals in HOD\mathsf{HOD} in a local way, and reveals the huge difference between HOD\mathsf{HOD}-supercompact cardinals and supercompact cardinals under the HOD\mathsf{HOD} Hypothesis.

Cite

@article{arxiv.1801.10420,
  title  = {The $\mathsf{HOD}$ Hypothesis and a supercompact cardinal},
  author = {Yong Cheng},
  journal= {arXiv preprint arXiv:1801.10420},
  year   = {2025}
}

Comments

Published in Mathematical Logic Quarterly. 63, No. 5, 462-472 (2017)

R2 v1 2026-06-23T00:05:49.077Z