English

Intermediate Models in Magidor-Radin Forcing- Part I

Logic 2022-03-03 v3

Abstract

We continue the work done by Gitik, Kanovei, Koepke, and later by the authors. We prove that for every set AA in a Magidor-Radin generic extension using a coherent sequence such that oU(κ)<κo^{\vec{U}}(\kappa)<\kappa, there is a subset CC' of the Magidor club such that V[A]=V[C]V[A]=V[C']. Also we classify all intermediate ZFCZFC transitive models VMV[G]V\subseteq M\subseteq V[G].

Cite

@article{arxiv.2009.12775,
  title  = {Intermediate Models in Magidor-Radin Forcing- Part I},
  author = {Tom Benhamou and Moti Gitik},
  journal= {arXiv preprint arXiv:2009.12775},
  year   = {2022}
}
R2 v1 2026-06-23T18:49:21.046Z