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Book on Godel's Theorem
- From: Tim Gwinn <***>
- Date: Sat, 6 Aug 2005 20:26:09 -0400
I'd like to
recommend a new book for those interested in Gödel's Incompleteness theorems. It is by Torkel
Franzén, and is entitled Gödel's Theorem: An Incomplete Guide to Its Use and
Abuse. [ISBN 1568812388] As evidenced from the title,
the primary focus of the book is to identify the specific nature of these
theorems, where they apply directly, and where they do not apply directly, and
where they are interpreted entirely erroneously.
Although the book
is aimed at non-mathematicians and those with no knowledge of formal logic, I
can't really imagine someone with no understanding of logic and some fair
amount of math comprehension benefitting alot from this book. I mean, by
p. 10 he talking about Diophantine equations and Goldbach-like conjectures, and
soon after, "PA" and "ZFC" are tossed about as if they were practically everyday
acronyms for most people. The book is however, largely free of
formulas and proofs, for those who are dissuaded by such. The overviews of the
theorems themselves is not as lucid as I imagine they could be. The overviews
will also seem a bit alien to someone expecting and Nagel & Newman kind of
treatment; instead, this is discussed from a more abstract perspective
of the characteristics and properties of formal systems, which avoids
getting into the gritty details (even Gödel-numbering is not explained in detail!) but
may be hard to grasp for someone not used to thinking at this level of
abstraction about mathematical systems.
With that said, I
still think it is quite worthwhile reading, and at a slim 170ish pages, it is a
fairly quick read. After the overviews, he takes on various
applications/misapplications of the theorems by topic. So, there are discussion
of the theorems' relevance or applicability to things such as TOE (Theory
of Everything), Turing machines, skepticism, minds, inexhaustibility,
computability and so on. He does so typically by first giving several quotes
that appear either in the literature or commonly on the internet, and then
proceeds to either correct or clarify those quotes. Such notables as Roger
Penrose, Freeman Dyson, and Stephen Hawking are among the quoted who are
scrutinized.
I think the
primary goal of the book is accomplished in its debunking of outright
misuses of the theorems, and by way of correction and clarification of
other uses, it accomplishes its pedagogical goal. I know it will cause
me to strive to be more precise in any future invocations of these
theorems.
Because of the
numerous references by Rosen to Gödel's
Incompleteness theorems and their results, I think it is particularly relevant
to this list.
Regards,
Tim