English

Failure of an higher analogue of Mho

Logic 2024-07-29 v1

Abstract

Justin Moore's weak club-guessing principle \mho admits various possible generalizations to the second uncountable cardinal. One of them was shown to hold in ZFC by Shelah. A stronger one was shown to follow from several consequences of the continuum hypothesis by Inamdar and Rinot. Here we prove that the stronger one may consistently fail. Specifically, starting with a supercompact cardinal and an inaccessible cardinal above it, we devise a notion of forcing consisting of finite working parts and finitely many two types of models as side conditions, to violate this analog of \mho at the second uncountable cardinal.

Keywords

Cite

@article{arxiv.2407.18603,
  title  = {Failure of an higher analogue of Mho},
  author = {Ido Feldman},
  journal= {arXiv preprint arXiv:2407.18603},
  year   = {2024}
}