Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rutgers!mtune!codas!novavax!utx1!campbell From: campbell@utx1.UUCP (Tom Campbell) Newsgroups: sci.math,sci.math.symbolic,sci.philosophy.tech Subject: Russell's set of sets which... paradox Message-ID: <1214@utx1.UUCP> Date: Wed, 22-Jul-87 16:30:22 EDT Article-I.D.: utx1.1214 Posted: Wed Jul 22 16:30:22 1987 Date-Received: Sat, 25-Jul-87 06:33:58 EDT Organization: Racal-Milgo, Ft. Lauderdale, Fl. Lines: 14 Keywords: set theory, paradox, logic Xref: mnetor sci.math:1624 sci.math.symbolic:98 sci.philosophy.tech:286 I would like to know if a *satisfactory explaination* has ever been given regarding Russell's well-known set theory paradox. For those who are not familar with it, here it is. Let S' be a set such that S' has as its elements all and only those sets which have the following property: They do not have themselves as elements. QUESTION: Is S' a set which does not have itself as a member? Thanks, TDC