{ "id": "1606.00312", "version": "v1", "published": "2016-06-01T14:46:23.000Z", "updated": "2016-06-01T14:46:23.000Z", "title": "The first-order theory of $\\ell$-permutation groups", "authors": [ "A. M. W. Glass", "John S. Wilson" ], "comment": "23 pages, 0 figures", "categories": [ "math.GR" ], "abstract": "Let $(\\Omega, \\leq)$ be a totally ordered set. We prove that if $\\Aut(\\Omega,\\leq)$ is transitive and satisfies the same first-order sentences as $\\Aut(\\RR,\\leq)$ (in the language of lattice-ordered groups) then $\\Omega$ and $\\RR$ are isomorphic ordered sets. This improvement of a theorem of Gurevich and Holland is obtained as one of many consequences of a study of centralizers and coloured chains associated with certain transitive subgroups of $\\Aut(\\Omega,\\leq)$.", "revisions": [ { "version": "v1", "updated": "2016-06-01T14:46:23.000Z" } ], "analyses": { "keywords": [ "permutation groups", "first-order theory", "first-order sentences", "isomorphic ordered sets", "totally ordered set" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }