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- Path: sparky!uunet!mtnmath!paul
- From: paul@mtnmath.UUCP (Paul Budnik)
- Newsgroups: sci.physics
- Subject: Re: Lowneheim-Skolem theorem (was: Continuos vs. discrete models)
- Message-ID: <361@mtnmath.UUCP>
- Date: 18 Nov 92 15:34:47 GMT
- References: <1992Nov17.124233.24312@oracorp.com> <TORKEL.92Nov18114047@isis.sics.se>
- Organization: Mountain Math Software, P. O. Box 2124, Saratoga. CA 95070
- Lines: 18
-
- In article <TORKEL.92Nov18114047@isis.sics.se>, torkel@sics.se (Torkel Franzen) writes:
- > In article <1992Nov17.124233.24312@oracorp.com> daryl@oracorp.com
- > (Daryl McCullough) writes:
- > >LS shows that there can
- > >never be a demonstration that space-time must be continuous, because
- > >there is no property of an uncountable set that doesn't also hold of
- > >some countable set.
- > Here is a counterexample to your assertion: an uncountable set has
- > the property of being uncountable, whereas no countable set has this
- > property.
-
- This would be a valid argument if uncountable had an absolute definition.
- I think uncountable is only meaningful relative to some formal system. There
- are plenty of examples of sets uncountable in one system that are countable
- in stronger systems. The question of whether uncountable has an absolute
- definition is a philisophical one that I expect we have different opinions on.
-
- Paul Budnik.
-