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- From: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Newsgroups: sci.math
- Subject: Re: Cardinarity of a Borel field--antichoice version
- Message-ID: <83967@netnews.upenn.edu>
- Date: 21 Jul 92 14:46:44 GMT
- References: <1992Jul16.152801.1538@Princeton.EDU> <1992Jul17.115108.8968@Princeton.EDU> <83554@netnews.upenn.edu> <1992Jul20.171849.17294@Princeton.EDU> <ARA.92Jul20200638@camelot.ai.mit.edu>
- Sender: news@netnews.upenn.edu
- Reply-To: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Organization: The Wistar Institute of Anatomy and Biology
- Lines: 23
- Nntp-Posting-Host: sagi.wistar.upenn.edu
- In-reply-to: ara@zurich.ai.mit.edu (Allan Adler)
-
- In article <ARA.92Jul20200638@camelot.ai.mit.edu>, ara@zurich (Allan Adler) writes:
- >Solovay remarks that it is known that the theory ZFC+I has a transitive
- >\epsilon-model if ZF+DC+P does (J.Nycielski, "On the Axiom of Determinateness")
- >This by itself seems to be quite striking.
-
- I believe that name is Mycielski.
-
- >He goes on to write: "However it does seem likely that the existence of a
- >transitive model of ZF+DC+LM is a consequence, in ZFC, of the existence
- >of a transitive model of ZFC".
-
- As it turned out, Shelah showed this to be false--the inaccessible is
- required.
-
- >Thus, Solovay seems not to be claiming a proof of the assertion which David
- >is attributing to him. Instead, he is stating that he believes it is true
- >but does not have a proof.
-
- David's version was inaccurate, yes, but he didn't make any claims true or
- false regarding the converse consistency result--the above does not refer.
- --
- -Matthew P Wiener (weemba@sagi.wistar.upenn.edu)
-
-