{ "id": "1607.07033", "version": "v1", "published": "2016-07-24T12:05:24.000Z", "updated": "2016-07-24T12:05:24.000Z", "title": "More notions of forcing add a Souslin tree", "authors": [ "Ari Meir Brodsky", "Assaf Rinot" ], "comment": "15 pages. Submitted", "categories": [ "math.LO" ], "abstract": "An $\\aleph_1$-Souslin tree is a complicated combinatorial object whose existence cannot be decided on the grounds of ZFC alone. But 15 years after Tennenbaum and independently Jech devised notions of forcing for introducing such a tree, Shelah proved that already the simplest forcing notion --- Cohen forcing --- adds an $\\aleph_1$-Souslin tree. In this paper, we identify a rather large class of notions of forcing that, assuming a GCH-type assumption, add a $\\lambda^+$-Souslin tree. This class includes Prikry, Magidor and Radin forcing.", "revisions": [ { "version": "v1", "updated": "2016-07-24T12:05:24.000Z" } ], "analyses": { "subjects": [ "03E05", "03E35", "05C05" ], "keywords": [ "souslin tree", "forcing add", "complicated combinatorial object", "large class", "simplest forcing notion" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }