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Forever Undecided: A Puzzle Guide To Gödel
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Forever Undecided: A Puzzle Guide To Gödel

4.03  ·  Rating details ·  67 Ratings  ·  5 Reviews
A challenging puzzle collection and an instructive and entertaining introduction to Kurt Godel's famous theorems, including incompleteness and undecidability. Much of the action of the book takes place on an imaginary and magical island, the Island of Knights and Knaves, where knights always make true statements, knaves always make false statements, and every inhabitant is ...more
Paperback, 272 pages
Published August 18th 1988 by Oxford Paperbacks (first published 1987)
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Jun 25, 2015 rated it liked it
It's focken wierd. It's an intermediate step between his puzzle books and his serious academic writings. So it's wierd to read. Smullyan doesn't say "you should prove this theorem" but he says " I have puzzle for you. There is some sentence, could you decide if it is true? Could you tell me why is it true? Why it can't be a lie".

I really dislike this style of writing, but the book gives many interesting thoughs and information about Gödel's work.

Jan 07, 2011 rated it it was amazing
Raymond Smullyan is my Logician Dumbledore. I own and read every book of his I can get my hands on. Which is well over a dozen.
Thomas Whitney
Oct 10, 2008 rated it really liked it  ·  review of another edition
A clever introduction to the rules of logic as well as the limitations of logic.
Jun 30, 2018 rated it liked it  ·  review of another edition
Shelves: philosophy
Eine wirklich schöne Hinführung zu Gödel-Problemen, aber ich habe spätestens ab Kapitel VII nicht mehr folgen können.
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Raymond M. Smullyan was a logician, musician, Zen master, puzzle master, and writer.

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