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- Path: sparky!uunet!mcsun!uknet!comlab.ox.ac.uk!oxuniv!loader
- From: loader@vax.oxford.ac.uk
- Newsgroups: sci.math
- Subject: Re: Proof of God's Existence
- Message-ID: <1992Sep1.224045.8620@vax.oxford.ac.uk>
- Date: 1 Sep 92 21:40:45 GMT
- References: <1992Sep1.215331.89956@vaxc.cc.monash.edu.au>
- Organization: Oxford University VAX 6620
- Lines: 49
-
- In article <1992Sep1.215331.89956@vaxc.cc.monash.edu.au>, kevin@vaxc.cc.monash.edu.au writes:
- > If one reads through philosophy, one will find many attempts at mathematical
- > proofs of God's existence. All these 'ontological proofs' have very obvious
- > and silly errors. It is quite clear that mathematics is not capable of making
- > a statement on the ontological status of God. Sure, maths can make lots of
- > comments about the hyperbolic plane, the Zariski Topology, the lattice of r.e
- > sets and so forth. But God? No way!
- > Asides from limitations in the expressive power of mathematics, the following
- > will show any proof of the ontic status of God futile.
- > 1. It is possible to imagine a world, completely agreeing with the current one
- > on all sensory data, in which God exists.
- > 2. It is possible to imagine a world, completely agreeing with the current one
- > on all sensory data, in which God doesn't exists.
- > Call a world satisfying condition 1 M, and a world satisfying 2 M'.
- > Then the existence of these epistemically indistinguishable worlds proves that
- > any ontological statement about God is INDEPENDENT of any epistemically
-
- It is possible to imagine a world completely agreeing with the current
- one on all sensory data, in which Fermat's last theorem is false.
- It is possible to imagine a world completely agreeing with the current
- one on all sensory data, in which Fermat's last theorem is true.
- Then by the fact that mathematical truths are necessary truths and true
- in all possible worlds, FLT is true and false.
-
- Kabloom
- (The world disappears in a puff of logic.)
-
- Oh dear, we're all still here. At least I am. Just goes to show I'm not part of
- the real world after all.
-
- > knowable axioms on the real world. So no proof either way exists. Bravo.
- > Notes 1. Some people say world M' is impossible, because the beauty of the
- > world we live in necessarily entails God's existence. There are many similar
- > arguments, basically content isomorphic to this. In fact, this argument is
- > content isomorphic to the trivial or empty argument, so not much need be said.
- > I assume my response to such a person is implicitly made clear in the previous
- > comments.
- > 2. It will strike many as odd that even Godel believed he had a proof, using
- > modal logic. If you can bother spending the time reading it (it is quite
- > complex), I'm sure you'll spot the error. It's more sublte than most other
- > ontological errors, but it's there, unavoidable, and unrect
- > even great mathematicians can go loony every now and again.
- > Well, there you have it. No further comment necessary.
-
- Well, there you have it. No further comment possible.
-
- > Kevin Davey
- > Monash University
- > Australia.
-