{ "id": "math/9605234", "version": "v1", "published": "1996-05-15T00:00:00.000Z", "updated": "1996-05-15T00:00:00.000Z", "title": "Cardinal preserving ideals", "authors": [ "Moti Gitik", "Saharon Shelah" ], "categories": [ "math.LO" ], "abstract": "We give some general criteria, when kappa-complete forcing preserves largeness properties -- like kappa-presaturation of normal ideals on lambda (even when they concentrate on small cofinalities). Then we quite accurately obtain the consistency strength ``NS_lambda is aleph_1-preserving'', for lambda > aleph_2 .", "revisions": [ { "version": "v1", "updated": "1996-05-15T00:00:00.000Z" } ], "analyses": { "keywords": [ "cardinal preserving ideals", "kappa-complete forcing preserves largeness properties", "general criteria", "consistency strength", "normal ideals" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1996math......5234G" } } }