The generalized derived model theorem for regularity of Θ

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Let δ\delta be a Woodin cardinal that is a limit of Woodin cardinals. Let g?g\text{?} be VV-generic for Col(ω,<δ)\mathrm{Col}(\omega,{<}\delta), and let L(Γg∗,Rg∗)L(\Gamma^*_g,\mathbb{R}^*_g) be the derived model at δ\delta computed in V[g]V[g]. Let μα\mu_{\alpha} denote the club filter on ℘ω1(ωα)\wp_{\omega_1}({}^{\omega}\alpha). Generalized derived model conjecture. In V(Rg∗)V(\mathbb{R}^*_g), both

L(ωOrd⁡,Γg∗,Rg∗)⊨ΘregL({}^{\omega}\operatorname{Ord},\Gamma^*_g,\mathbb{R}^*_g)\models\Theta\mathsf{reg}

and

L(ωOrd⁡,Γg∗,Rg∗)[⟨μα∣α∈Ord⁡⟩]⊨Θreg+ω1 is supercompact.L({}^{\omega}\operatorname{Ord},\Gamma^*_g,\mathbb{R}^*_g)[\langle\mu_{\alpha}\mid\alpha\in\operatorname{Ord}\rangle]\models\Theta\mathsf{reg}+\omega_1\text{ is supercompact}.

This would extend the known derived model results for AD+\mathsf{AD}^+ and supercompactness of ω1\omega_1 to stronger regularity of Θ\Theta; the paper explains that the corresponding stronger determinacy assumptions were not known to be consistent from large cardinals.

References

Primary source

Takehiko Gappo, Sandra Müller and Grigor Sargsyan, “Chang models over derived models with supercompact measures”, arXiv:2307.08607 (2025).

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