The generic-generator non-badness conjecture

Let obreakAD+ obreak\textsf{AD}^+ denote the strengthened axiom of determinacy. For a function FF as in the paper's Theorem nx, call FF pe-bad when, for a cone of reals xx, the supremum of the Woodin cardinals of the associated L[E]L[\vec E] construction equals obreakδx obreak\delta_x; define hp-bad analogously. Call FF projective-like when its base pointclass has the stated projective representation. Generic-generator non-badness conjecture. Assuming obreakAD+ obreak\textsf{AD}^+, if FF is as in Theorem nx and is projective-like, then FF is neither pe-bad nor hp-bad. The \text says that hod-pair capturing \implies this conjecture for many projective FF, but does not establish it in full.

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Primary source

Grigor Sargsyan, “Generic Generators”, arXiv:2307.00109 (2025).

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