{ "id": "2406.12776", "version": "v1", "published": "2024-06-18T16:44:44.000Z", "updated": "2024-06-18T16:44:44.000Z", "title": "Axiom $\\mathcal{A}$ and supercompactness", "authors": [ "Alejandro Poveda" ], "categories": [ "math.LO" ], "abstract": "We produce a model where every supercompact cardinal is $C^{(1)}$-supercompact with inaccessible targets. This is a significant improvement of the main identity-crises configuration obtained in \\cite{HMP} and provides a definitive answer to a question of Bagaria \\cite[p.19]{Bag}. This configuration is a consequence of a new axiom we introduce -- called $\\mathcal{A}$ -- which is showed to be compatible with Woodin's $I_0$ cardinals. We also answer a question of V. Gitman and G. Goldberg on the relationship between supercompactness and cardinal-preserving extendibility. As an incidental result, we prove a theorem suggesting that supercompactness is the strongest large-cardinal notion preserved by Radin forcing.", "revisions": [ { "version": "v1", "updated": "2024-06-18T16:44:44.000Z" } ], "analyses": { "keywords": [ "supercompactness", "strongest large-cardinal notion", "main identity-crises configuration", "supercompact cardinal", "incidental result" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }