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A Transition to Abstract Mathematics (2nd Edition, 2014) – Solutions Manual – Maddox

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INSTANT PDF DOWNLOAD — Complete Solutions Manual for A Transition to Abstract Mathematics: Learning Mathematical Thinking and Writing (2nd Edition, 2014) by Randall B. Maddox. Includes solutions to all 9 chapters with step-by-step reasoning, proofs, and logic-based explanations. Perfect for math majors learning proof techniques and abstract reasoning. A Transition to Abstract Mathematics solutions manual, Randall Maddox abstract math answers, abstract mathematics solved problems, proof writing textbook solutions, mathematical reasoning problem solving, Maddox 2nd edition solutions PDF, logic and proof exercises solved, abstract algebra introduction solutions, proof-based mathematics guide, set theory and logic workbook, Maddox mathematical writing solutions, mathematics foundations answers, advanced logic problem solutions, undergraduate abstract mathematics manual, math proof techniques solved, abstract thinking exercises PDF, mathematical structures problem solving, discrete mathematics with proofs solutions, real analysis and logic manual, mathematical reasoning step-by-step solutions

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ALL 9 CHAPTERS COVERED




SOLUTIONS MANUAL

, Mathematical Thinking and Writing:
A Transition to Abstract Mathematics
Instructor’s Guide and Solutions Manual

Randall B. Maddox
Pepperdine University

March 16, 2009

,ii

, Contents

0 Notation and Assumptions 1


I Foundations of Logic and Proof Writing 3
1 Language and Mathematics 5
1.1 Introduction to Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 If-Then Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 Universal and Existential Quantifiers . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.4 Negations of Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.5 How We Write Proofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2 Properties of Real Numbers 23
2.1 Basic Algebraic Properties of Real Numbers . . . . . . . . . . . . . . . . . . . . . . 23
2.2 Ordering Properties of the Real Numbers . . . . . . . . . . . . . . . . . . . . . . . 26
2.3 Absolute Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.4 The Division Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.5 Divisibility and Prime Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3 Set Proofs 35
3.1 Set Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.2 Proving Basic Set Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3 Families of Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.4 The Principle of Mathematical Induction . . . . . . . . . . . . . . . . . . . . . . . 41
3.5 Variations of the PMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.6 Equivalence Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.7 Equivalence Classes and Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.8 Building the Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.9 Roots of Real Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.10 Irrational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.11 Relations in General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

4 Functions 69
4.1 Definitions and Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.2 One-to-one and Onto Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4.3 Image and Pre-image Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.4 Composition and Inverse Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4.5 Three Helpful Theorems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
4.6 Finite Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.7 Infinite Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

iii

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