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- Newsgroups: sci.logic
- Path: sparky!uunet!cs.utexas.edu!tamsun.tamu.edu!mrh7507
- From: mrh7507@tamsun.tamu.edu (Michael Hand)
- Subject: Re: The Mathematical Universe
- Message-ID: <1992Oct9.212843.1308@tamsun.tamu.edu>
- Organization: Texas A&M University, College Station
- Date: Fri, 9 Oct 1992 21:28:43 GMT
- Lines: 42
-
- Randall Holmes and Chris Menzel write:
-
- Holmes> I also maintain that the physical world is a "mathematical object".
-
- Menzel> I take it you don't think the physical world is *literally* a
- > mathematical object, if only for the fact that, as you yourself
- > hint, any number of other mathematical objects would have served
- > just as well.
-
- Holmes> Indeed many other objects would have served as well (do in
- > fact serve as well?); our position makes it impossible to discover
- > which one has in fact served :-)
-
- Recall Benacerraf on a similar skepticism + absurd ontological
- identification (namely, identifying numbers with certain sets
- instead of certain others, much as Holmes identifies the world
- with a certain mathematical object instead of another that would
- serve as well); the application to Holmes's view is obvious.
- I also recommend that anyone interested in attacking Benacerraf
- on this issue read his paper instead of reacting just to these
- suggestive quotes.
-
- If the numbers constitute one particular set of sets, and not another,
- then there must be arguments to indicate which...
-
- In awaiting enlightment on the true identity of 3 we are not awaiting a
- proof of some deep theorem. Having gotten as far as we have without
- settling the identity of 3, we can go no further. We do not know what a
- proof of that *could* look like. The notion of "correct account" is
- breaking loose from its moorings if we admit of the possible existence
- of unjustifiable but correct answers to questions such as this...
-
- ...[T]here is little to conclude except that any feature of an account
- that identifies 3 with a set is a superfluous one -- and that therefore
- 3, and its fellow numbers, could not be sets at all.
-
- [from "What Numbers Could Not Be"]
- --
- _______________________________________________________________________
- -----------------------------------------------------------------------
- Michael Hand phone (409)845-5660, fax (409)845-0458
- Dept of Philosophy, Texas A&M Univ, College Station TX 77843-4237 U.S.A.
-