{ "id": "2410.23967", "version": "v1", "published": "2024-10-31T14:21:19.000Z", "updated": "2024-10-31T14:21:19.000Z", "title": "$Σ_1$-Stationary logic as an $\\aleph_1$-Abstract Elementary Class", "authors": [ "Will Boney" ], "categories": [ "math.LO" ], "abstract": "$\\mu$-Abstract Elementary Classes are a model theoretic framework introduced in [BGL+16] to encompass classes axiomatized by $\\mathbb{L}_{\\infty, \\infty}$. We show that the framework extends beyond these logics by showing classes axiomatized in $\\mathbb{L}(aa)$ with just the $aa$ quantifier are an $\\aleph_1$-Abstract Elementary Class.", "revisions": [ { "version": "v1", "updated": "2024-10-31T14:21:19.000Z" } ], "analyses": { "keywords": [ "abstract elementary class", "stationary logic", "model theoretic framework", "framework extends", "encompass classes" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }