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Proofs from THE BOOK is a book of mathematical proofs by Martin Aigner and Günter M. Ziegler. The book is dedicated to the mathematician Paul Erdős, who often referred to "The Book" in which God keeps all of the most elegant proofs of mathematical theorems. During a lecture in 1985, Erdős said, "You don't have to believe in God, but you should believe in The Book."## References

Proofs from THE BOOK contains 32 different sections, each devoted to one theorem but often containing multiple proofs and related results. It spans a broad range of mathematical fields: number theory, geometry, analysis, combinatorics and graph theory. Erdős himself made many suggestions for the book, but died before its publication. The book is illustrated by Karl Heinrich Hofmann. It has gone through three editions in English, and has also been translated into Persian, French, German, Hungarian, Italian, Japanese, Chinese, Polish, Portuguese, Russian and Spanish. Additional translations into Korean and Turkish are in preparation.

The proofs include:

- Proof of Bertrand's postulate
- Proof that e is irrational (also showing the irrationality of certain related numbers)
- Five proofs of the infinitude of the primes, including Euclid's and Furstenberg's.

- Aigner, Martin; Ziegler, Günter (2003).
*Proofs from THE BOOK*. Berlin; New York: Springer. ISBN 3-540-40460-0. - Günter M. Ziegler's homepage, including a list of editions and translations.
- .

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Last updated on Monday July 14, 2008 at 09:08:11 PDT (GMT -0700)

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This article is licensed under the GNU Free Documentation License.

Last updated on Monday July 14, 2008 at 09:08:11 PDT (GMT -0700)

View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation

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