English

Determinacy in L(R,\mu)

Logic 2013-09-03 v2

Abstract

Assume L(\mathbb{R},\mu) satisfies ZF+DC+\Theta>\omega_2 + \mu is a normal fine measure on \powerset_{\omega_1}(\mathbb{R}). The main result of this paper is the characterization theorem of L(\mathbb{R},\mu) which states that L(\mathbb{R},\mu) satisfies \Theta>\omega_2 if and only if L(\mathbb{R},\mu) satisfies AD^+. As a result, we obtain the equiconsistency between the two theories: "ZFC + there are \omega^2 Woodin cardinals" and "ZF+DC+\mu is a normal fine measure on \powerset_{\omega_1}(\mathbb{R}) + \Theta>\omega_2".

Keywords

Cite

@article{arxiv.1201.6005,
  title  = {Determinacy in L(R,\mu)},
  author = {Nam Trang},
  journal= {arXiv preprint arXiv:1201.6005},
  year   = {2013}
}
R2 v1 2026-06-21T20:11:13.396Z