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Conjecture and Proof (Classroom Resource Materials) Paperback – June 1, 2001

by Miklós Laczkovich (Author)

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The Budapest semesters in mathematics were initiated with the aim of offering undergraduate courses that convey the tradition of Hungarian mathematics to English-speaking students. This book is an elaborate version of the course on 'Conjecture and Proof'. It gives miniature introductions to various areas of mathematics by presenting some interesting and important, but easily accessible results and methods. The text contains complete proofs of deep results such as the transcendence of e, the Banach-Tarski paradox and the existence of Borel sets of arbitrary (finite) class. One of the purposes is to demonstrate how far one can get from the first principles in just a couple of steps. Prerequisites are kept to a minimum, and any introductory calculus course provides the necessary background for understanding the book. Exercises are included for the benefit of students. However, this book should prove fascinating for any mathematically literate reader.

Conjecture and Proof (Classroom Resource Materials)

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Product Details

Series: Classroom Resource Materials
Paperback: 140 pages
Publisher: The Mathematical Association of America (June 1, 2001)
Language: English
ISBN-10: 0883857227
ISBN-13: 978-0883857229
Product Dimensions: 6 x 0.4 x 9 inches
Shipping Weight: 4.2 ounces (View shipping rates and policies)
Average Customer Review: 4.8 out of 5 stars See all reviews (4 customer reviews)
Amazon Best Sellers Rank: #1,835,347 in Books (See Top 100 in Books)
- #341 in Books > Science & Math > Mathematics > Pure Mathematics > Combinatorics
- #603 in Books > Science & Math > Mathematics > Pure Mathematics > Number Theory
- #816 in Books > Science & Math > Mathematics > Pure Mathematics > Logic

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12 of 12 people found the following review helpful

The basics of proof techniques covered in sufficient depth

By Charles Ashbacher HALL OF FAMETOP 500 REVIEWERVINE VOICE on October 5, 2002

Format: Paperback

As the title indicates, the legendary Paul Erdos was involved in the creation of this book. In 1983, Erdos and other Hungarian mathematicians started the Budapest Semester in Mathematics (BSM), a program for American and Canadian undergraduate students. One of the courses in this program involves creative problem solving, which was the motivation for the material in this book. As is the case with books on problem solving, no particular area of mathematics is examined. The emphasis is on proof techniques, which are largely independent of the mathematical topic.
Of course, the quality of any book of this type is largely dependent on the choice of problems that are described, and in this case the chosen topics are excellent. The book is split into two main sections, which are further split into the following subsections:
I) Proofs of Impossibility, Proofs of Nonexistence.
1) Proofs of Irrationality.
2) The Elements of the Theory of Geometric Constructions.
3) Constructible Regular Polygons.
4) Some Basic Facts About Linear Spaces and Fields.
5) Algebraic and Transcendental Numbers.
6) Cauchy's Functional Equation.
7) Geometric Decompositions.
II) Constructions, Proofs of Existence.
8) The Pigeonhole Principle.
9) Liouville Numbers.
10) Countable and Uncountable Sets.
11) Isometries of R^n.
12) The Problem of Invariant Measures.
13) The Banach-Tarski Paradox.
14) Open and Closed Sets in R. The Cantor Set.
15) The Peano Curve.
16) Borel Sets.
17) The Diagonal Method.
While each of these topics is introduced, that does not mean that the coverage is superficial. The book is advertised as having more than elementary coverage, and I concur with that assessment.Read more ›

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6 of 6 people found the following review helpful

Good problems, beautiful proofs

By Hernadvolgyi Istvan on November 7, 2006

Format: Paperback

I have recently acquired a copy of the Hungarian edition (apparently a translation of this English edition) and I can tell you, these guys have selected some of the best and most representative problems in Mathematics. The proofs are very concise and you really do not need much more than high school/early college math to follow them. There are a number of exercises for each chapter (topic) and some of them also come with hints. I would also consider these exercises to tease brighter high school math wizards. For those who have already seen them during their studies, it is surely worth another look. I have not seen the English edition, but reading the Hungarian version, I assume it must also be very well written.

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2 of 3 people found the following review helpful

A Book from Hungary, an Inventive Country, for New Ways of Thinking about Mathematical Problems

By Man Kam Tam on June 7, 2008

Format: Paperback Verified Purchase

"Conjecture and Proof" is a collection of the lecture notes designed for a one-semester course in Hungary for American and Canadian students. The course was intended for creative problem solving and for conveying the tradition of Hungarian mathematics. Other purpose of the book includes showing the spirit of mathematics.

Hungary is a country well-known for inventions. Her inventions include Rubik cube, fuel injector, helicopter, stereo, television, transformer, generator, ball pen, telephone switch, neutron bomb, and contact lens. Her scientists have been awarded for Nobel prizes at the least 11 times. With knowing the history of Hungary, the expectation of the book is logical. Even though the book is intended for undergraduate students, it exposure the readers on many deep, interesting, and important theorems with completed proofs but easily accessible methods on
1. the irrationality of the number of the square root of 2, of the number e, and of the number pi,
2. the three classical geometric construction problems,
3. constructible regular polygons (Gauss Theorem),
4. e is transcendental,
5. Banach-Tarski Paradox.

The book also comes with a sketch of the proof of Hilbert's third problem, which states that the regular tetrahedron is not equidecomposable to the cube nor to any rectangular box of the same volume. The proof is based on an additive and invariant function. The value of the function at a regular tetrahedron is nonzero, but the value of the function at the cube is zero.

The first time I read the book while I was an undergraduate. Most of the material covers on the book were new to me other than the irrationality of square root of 2, the pigeonhole principle, countable and uncountable sets.Read more ›

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1 of 1 people found the following review helpful

Solid!

By Jake on March 6, 2014

Format: Paperback Verified Purchase

Purchased for my son who has been doing independent research in mathematics in college. A great book for introducing the ideas and techniques of proof writing.

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