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- Newsgroups: sci.philosophy.tech
- Path: sparky!uunet!psinntp!scylla!daryl
- From: daryl@oracorp.com (Daryl McCullough)
- Subject: Re: Algorithmic Thought? (was re: QM and Free Will)
- Message-ID: <1992Nov6.151057.1351@oracorp.com>
- Organization: ORA Corporation
- Date: Fri, 6 Nov 1992 15:10:57 GMT
- Lines: 22
-
- zeleny@husc10.harvard.edu (Michael Zeleny) writes:
- [about Penrose' argument from Godel's Theorem]
-
- >The correct question is whether we could be working algorithmically
- >without being ever being able (in principle) to attain comprehensive
- >awareness of the algorithm. For that is exactly what you would need
- >in order to avoid the Lucas-Putnam-Penrose conclusion.
-
- No, that's not correct. Even if there were some way to prove that our
- reasoning was not describable by an algorithm, the conclusion that our
- reasoning is more *powerful* than an algorithm simply doesn't follow.
- Just because a theory is non-algorithmic doesn't mean that it is more
- powerful than any algorithmic theory.
-
- Penrose' arguments simply show that our reasoning is more powerful
- than the sequence of theories T1 = PA, T2 = T1 + con(T1), T3 = T2 +
- con(T2), etc. However, there are r.e. theories (for example, NF or
- ZFC) that are more powerful than all of these theories.
-
- Daryl McCullough
- ORA Corp.
- Ithaca, NY
-