{ "id": "1809.00882", "version": "v1", "published": "2018-09-04T10:41:48.000Z", "updated": "2018-09-04T10:41:48.000Z", "title": "An elementary proof of de Finetti's Theorem", "authors": [ "Werner Kirsch" ], "categories": [ "math.PR" ], "abstract": "A sequence of random variables is called exchangeable if the joint distribution of the sequence is unchanged by any permutation of the indices. De Finetti's theorem characterizes all $\\{0,1\\}$-valued exchangeable sequences as a \"mixture\" of sequences of independent random variables. We present an new, elementary proof of de Finetti's Theorem. The purpose of this paper is to make this theorem accessible to a broader community through an essentially self-contained proof.", "revisions": [ { "version": "v1", "updated": "2018-09-04T10:41:48.000Z" } ], "analyses": { "subjects": [ "60G09" ], "keywords": [ "elementary proof", "finettis theorem characterizes", "independent random variables", "joint distribution", "broader community" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }