Chapman and Hall/CRC

921 pages | 38 B/W Illus.

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**Handbook of Mathematical Induction: Theory and Applications** shows how to find and write proofs via mathematical induction. This comprehensive book covers the theory, the structure of the written proof, all standard exercises, and hundreds of application examples from nearly every area of mathematics.

In the first part of the book, the author discusses different inductive techniques, including well-ordered sets, basic mathematical induction, strong induction, double induction, infinite descent, downward induction, and several variants. He then introduces ordinals and cardinals, transfinite induction, the axiom of choice, Zorn’s lemma, empirical induction, and fallacies and induction. He also explains how to write inductive proofs.

The next part contains more than 750 exercises that highlight the levels of difficulty of an inductive proof, the variety of inductive techniques available, and the scope of results provable by mathematical induction. Each self-contained chapter in this section includes the necessary definitions, theory, and notation and covers a range of theorems and problems, from fundamental to very specialized.

The final part presents either solutions or hints to the exercises. Slightly longer than what is found in most texts, these solutions provide complete details for every step of the problem-solving process.

… a treasure trove for anyone who is … interested in mathematics as a hobby, or as the target of proof automation or assistance. It could also be the basis for a crosscutting course in mathematics, based on seeing how one can apply a single proof technique across the field.

— Simon Thompson in *Computing News, *May 2011

Gunderson started out collecting some induction problems for discrete math students and then couldn't stop himself, thereafter assembling more than 750 of the addictive things for this handbook and supplementing them with a grounding in theory and discussion of applications. He offers 500-plus complete solutions, and many of the other problems come with hints or references; unlike other treatments, this handbook treats the subject seriously and is not just a ‘collection of recipes’. It’s a book that will work well with most math or computing science courses, on a subject that pertains to graph theory, point set topology, elementary number theory, linear algebra, analysis, probability theory, geometry, group theory, and game theory, among many other topics.

—*SciTech Book News*, February 2011

… a unique work … the ostensibly narrow subject of mathematical induction is carefully and systematically expounded, from its more elementary aspects to some quite sophisticated uses of the technique. This is done with a (very proper!) emphasis on solving problems by means of some form of induction or other … any of us who regularly teach the undergraduate course aimed at introducing mathematics majors to methods of proof quite simply need to own this book. … In this boot camp course, it is imperative that problems should be abundant, both in supply and variety, and should be capable of careful dissection. Gunderson hit[s] the mark on both counts … Gunderson’s discussions are evocative and thorough and can be appreciated by mathematicians of all sorts … [he] develop[s] the requisite surrounding material with great care, considerably enhancing the value of his book as a supplementary text for a huge number of courses, both at an undergraduate and graduate level … a very welcome addition to the literature …

—*MAA Reviews*, December 2010

**THEORY**

**What Is Mathematical Induction? **

Introduction

An informal introduction to mathematical induction

Ingredients of a proof by mathematical induction

Two other ways to think of mathematical induction

A simple example: dice

**Gauss and sums**

A variety of applications

History of mathematical induction

Mathematical induction in modern literature

**Foundations**

Notation

Axioms

Peano’s axioms

Principle of mathematical induction

Properties of natural numbers

Well-ordered sets

Well-founded sets

**Variants of Finite Mathematical Induction**

The first principle

Strong mathematical induction

Downward induction

Alternative forms of mathematical induction

Double induction

Fermat’s method of infinite descent

Structural induction

**Inductive Techniques Applied to the Infinite**

More on well-ordered sets

Transfinite induction

Cardinals

Ordinals

Axiom of choice and its equivalent forms

**Paradoxes and Sophisms from Induction**

Trouble with the language?

Fuzzy definitions

Missed a case?

More deceit?

**Empirical Induction**

Introduction

Guess the pattern?

A pattern in primes?

A sequence of integers?

Sequences with only primes?

Divisibility

Never a square?

Goldbach’s conjecture

Cutting the cake

Sums of hex numbers

Factoring *x ^{n}* − 1

Goodstein sequences

**How to Prove by Induction**

Tips on proving by induction

Proving more can be easier

Proving limits by induction

Which kind of induction is preferable?

**The Written MI Proof**

A template

Improving the flow

Using notation and abbreviations

**APPLICATIONS AND EXERCISES**

**Identities**

Arithmetic progressions

Sums of finite geometric series and related series

Power sums, sums of a single power

Products and sums of products

Sums or products of fractions

Identities with binomial coefficients

Gaussian coefficients

Trigonometry identities

Miscellaneous identities

**Inequalities**

**Number Theory**

Primes

Congruences

Divisibility

Numbers expressible as sums

Egyptian fractions

Farey fractions

Continued fractions

**Sequences**

Difference sequences

Fibonacci numbers

Lucas numbers

Harmonic numbers

Catalan numbers

Schröder numbers

Eulerian numbers

Euler numbers

Stirling numbers of the second kind

**Sets**

Properties of sets

Posets and lattices

Topology

Ultrafilters

**Logic and Language**

Sentential logic

Equational logic

Well-formed formulae

Language

**Graphs**

Graph theory basics

Trees and forests

Minimum spanning trees

Connectivity, walks

Matchings

Stable marriages

Graph coloring

Planar graphs

Extremal graph theory

Digraphs and tournaments

Geometric graphs

**Recursion and Algorithms**

Recursively defined operations

Recursively defined sets

Recursively defined sequences

Loop invariants and algorithms

Data structures

Complexity

**Games and Recreations**

Introduction to game theory

Tree games

Tiling with dominoes and trominoes

Dirty faces, cheating wives, muddy children, and colored hats

Detecting a counterfeit coin

More recreations

**Relations and Functions**

Binary relations

Functions

Calculus

Polynomials

Primitive recursive functions

Ackermann’s function

**Linear and Abstract Algebra**

Matrices and linear equations

Groups and permutations

Rings

Fields

Vector spaces

**Geometry**

Convexity

Polygons

Lines, planes, regions, and polyhedra

Finite geometries

**Ramsey Theory**

The Ramsey arrow

Basic Ramsey theorems

Parameter words and combinatorial spaces

Shelah bound

High chromatic number and large girth

**Probability and Statistics**

Probability basics

Basic probability exercises

Branching processes

The ballot problem and the hitting game

Pascal’s game

Local lemma

**SOLUTIONS AND HINTS TO EXERCISES**

Foundations

Empirical Induction

Identities

Inequalities

Number Theory

Sequences

Sets

Logic and Language

Graphs

Recursion and Algorithms

Games and Recreation

Relations and Functions

Linear and Abstract Algebra

Geometry

Ramsey Theory

Probability and Statistics

**APPENDICES**

ZFC Axiom System

Inducing You to Laugh?

The Greek Alphabet

**References**

**Index**

- COM046000
- COMPUTERS / Operating Systems / General
- MAT000000
- MATHEMATICS / General
- MAT028000
- MATHEMATICS / Set Theory