PFA conjecture on derived models at limits of Woodin cardinals

Let D(V,κ)\mathcal{D}(V,\kappa) denote the derived model at κ\kappa, let ΘD(V,κ)\Theta^{D(V,\kappa)} be its supremum of ordinals surjected by its reals, and let κ+\kappa^+ be the successor cardinal of κ\kappa. Suppose κ\kappa is a limit of Woodin cardinals. PFA conjecture. The following both hold:

ΘD(V,κ)<κ+.\Theta^{D(V,\kappa)}<\kappa^+. D(V,κ)⊨ADR.D(V,\kappa)\models AD_{\mathbb{R}}.

This conjecture asks how a global forcing axiom such as PFA constrains the new derived model at a limit of Woodin cardinals. It concerns both the size of the derived model's Θ\Theta and whether it satisfies determinacy for games on reals; the supplied context gives no resolution status.

References

Primary source

Derek Levinson, Nam Trang and Trevor Wilson, “More Derived Models in PFA”, arXiv:2602.16854 (2026).

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