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- Newsgroups: sci.logic
- Path: sparky!uunet!secapl!Cookie!frank
- From: frank@Cookie.secapl.com (Frank Adams)
- Subject: Re: Russell's Paradox
- Message-ID: <1992Nov09.172532.43648@Cookie.secapl.com>
- Date: Mon, 09 Nov 1992 17:25:32 GMT
- References: <25916@optima.cs.arizona.edu>
- Organization: Security APL, Inc.
- Lines: 14
-
- In article <25916@optima.cs.arizona.edu> gudeman@cs.arizona.edu (David Gudeman) writes:
- >No, I am not complaining about elementhood being a proposition, I am
- >complaining about a syntactic circularity begin treated as though it
- >had semantic significance. Neither am I concerned about the
- >unrestricted range of the quantification. As the set {x : x = x}
- >clearly shows, there is no inconsistency inherent in either
- >self-membership or impredicativity. I claim that {x : x = x} is a
- >perfectly reasonable set and that the mere fact that ZF proves the
- >opposite is enough to show that ZF is not an adequate axiomatization
- >of set theory.
-
- All right; but what would you put in it's place? I'm not willing to call
- something "set theory" unless it has *some* recognizable form of the axiom
- of comprehension. Can you formalize your ideas?
-