Last Update: 7 December 2010
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|"The greatest challenge to any thinker is stating the problem in a way that will allow a solution."|
|"Against logic there is no armor like ignorance."|
Try to answer it yourself before linking to this online answer :-)
Lewis Carroll, most well known as the author of "Alice in Wonderland"
(more properly known as Alice's Adventures in Wonderland and
Through the Looking-Glass), was also a professional logician.
You might find the following of interest:
Carroll, Lewis (1895), "What the Tortoise Said to Achilles", Mind 4(14) (April): 278-280.
My understanding of it is that it clarifies the nature of rules of inference.
written by one of the two philosophers (the other was Alfred North Whitehead)
who developed the kind of logic that we are studying.
Gardner, Martin (1966), Martin Gardner's New Mathematical Diversions from Scientific American (New York: Simon & Schuster), Ch. 10: "The Four-Color Map Theorem", pp. 113-123, 250-251.
Vardi, Moshe Y. (2010), "On P, NP, and Computational Complexity", Communications of the ACM 53(11) (November): 5.