What is included with this book?
Why Read This Book? | p. xiii |
Preface | p. xv |
Preface to the First Edition | p. xvii |
Acknowledgments | p. xxi |
Notation and Assumptions | p. 1 |
Set Terminology and Notation | p. 1 |
Assumptions about the Real Numbers | p. 3 |
Basic Algebraic Properties | p. 3 |
Ordering Properties | p. 5 |
Other Assumptions | p. 7 |
Foundations of Logic and Proof Writing | p. 9 |
Language and Mathematics | p. 11 |
Introduction to Logic | p. 11 |
Statements | p. 11 |
Negation of a Statement | p. 13 |
Combining Statements with AND | p. 13 |
Combining Statements with OR | p. 14 |
Logical Equivalence | p. 16 |
Tautologies and Contradictions | p. 18 |
If-Then Statements | p. 18 |
If-Then Statements Defined | p. 18 |
Variations on p to q | p. 21 |
Logical Equivalence and Tautologies | p. 23 |
Universal and Existential Quantifiers | p. 27 |
The Universal Quantifier | p. 28 |
The Existential Quantifier | p. 29 |
Unique Existence | p. 32 |
Negations of Statements | p. 33 |
Negations of AND and OR Statements | p. 33 |
Negations of If-Then Statements | p. 34 |
Negations of Statements with the Universal Quantifier | p. 36 |
Negations of Statements with the Existential Quantifer | p. 37 |
How We Write Proofs | p. 40 |
Direct Proof | p. 40 |
Proof by Contrapositive | p. 41 |
Proving a Logically Equivalent Statement | p. 41 |
Proof by Contradiction | p. 42 |
Disproving a Statement | p. 42 |
Properties of Real Numbers | p. 45 |
Basic Algebraic Properties of Real Numbers | p. 45 |
Properties of Addition | p. 46 |
Properties of Multiplication | p. 49 |
Ordering Properties of the Real Numbers | p. 51 |
Absolute Value | p. 53 |
The Division Algorithm | p. 56 |
Divisibility and Prime Numbers | p. 59 |
Sets and Their Properties | p. 63 |
Set Terminology | p. 63 |
Proving Basic Set Properties | p. 67 |
Families of Sets | p. 71 |
The Principle of Mathematical Induction | p. 78 |
Variations of the PMI | p. 85 |
Equivalence Relations | p. 91 |
Equivalence Relations | p. 91 |
Equivalence Classes and Partitions | p. 97 |
Building the Rational Numbers | p. 102 |
Defining Rational Equality | p. 103 |
Rational Addition and Multiplication | p. 104 |
Roots of Real Numbers | p. 106 |
Irrational Numbers | p. 107 |
Relations in General | p. 111 |
Functions | p. 119 |
Definition and Examples | p. 119 |
One-to-one and Onto Functions | p. 125 |
Image and Pre-Image Sets | p. 128 |
Composition and Inverse Functions | p. 131 |
Composition of Functions | p. 132 |
Inverse Functions | p. 133 |
Three Helpful Theorems | p. 135 |
Finite Sets | p. 137 |
Infinite Sets | p. 139 |
Cartesian Products and Cardinality | p. 144 |
Cartesian Products | p. 144 |
Functions Between Finite Sets | p. 146 |
Applications | p. 148 |
Combinations and Partitions | p. 151 |
Combinations | p. 151 |
Partitioning a Set | p. 152 |
Applications | p. 153 |
The Binomial Theorem | p. 157 |
Basic Principles of Analysis | p. 163 |
The Real Numbers | p. 165 |
The Least Upper Bound Axiom | p. 165 |
Least Upper Bounds | p. 166 |
Greatest Lower Bounds | p. 168 |
The Archimedean Property | p. 169 |
Maximum and Minimum of Finite Sets | p. 170 |
Open and Closed Sets | p. 172 |
Interior, Exterior, Boundary, and Cluster Points | p. 175 |
Interior, Exterior, and Boundary | p. 175 |
Cluster Points | p. 176 |
Closure of Sets | p. 178 |
Compactness | p. 180 |
Sequences of Real Numbers | p. 185 |
Sequences Defined | p. 185 |
Monotone Sequences | p. 186 |
Bounded Sequences | p. 187 |
Convergence of Sequences | p. 190 |
Convergence to a Real Number | p. 190 |
Convergence to Infinity | p. 196 |
The Nested Interval Property | p. 197 |
From LUB Axiom to NIP | p. 198 |
The NIP Applied to Subsequences | p. 199 |
From NIP to LUB Axiom | p. 201 |
Cauchy Sequences | p. 202 |
Convergence of Cauchy Sequences | p. 203 |
From Completeness to the NIP | p. 205 |
Functions of a Real Variable | p. 207 |
Bounded and Monotone Functions | p. 207 |
Bounded Functions | p. 207 |
Monotone Functions | p. 208 |
Limits and Their Basic Properties | p. 210 |
Definition of Limit | p. 210 |
Basic Theorems of Limits | p. 213 |
More on Limits | p. 217 |
One-Sided Limits | p. 217 |
Sequential Limits | p. 218 |
Limits Involving Infinity | p. 219 |
Limits at Infinity | p. 220 |
Limits of Infinity | p. 222 |
Continuity | p. 224 |
Continuity at a Point | p. 224 |
Continuity on a Set | p. 228 |
One-Sided Continuity | p. 230 |
Implications of Continuity | p. 231 |
The Intermediate Value Theorem | p. 231 |
Continuity and Open Sets | p. 233 |
Uniform Continuity | p. 235 |
Definition and Examples | p. 236 |
Uniform Continuity and Compact Sets | p. 239 |
Basic Principles of Algebra | p. 241 |
Groups | p. 243 |
Introduction to Groups | p. 243 |
Basic Characteristics of Algebraic Structures | p. 243 |
Groups Defined | p. 246 |
Subgroups | p. 252 |
Subgroups Defined | p. 252 |
Generated Subgroups | p. 254 |
Cyclic Subgroups | p. 255 |
Quotient Groups | p. 260 |
Integers Modulo n | p. 260 |
Quotient Groups | p. 263 |
Cosets and Lagrange's Theorem | p. 267 |
Permutation Groups | p. 268 |
Permutation Groups Defined | p. 268 |
The Symmetric Group | p. 269 |
The Alternating Group | p. 271 |
The Dihedral Group | p. 273 |
Normal Subgroups | p. 275 |
Group Morphisms | p. 280 |
Rings | p. 287 |
Rings and Fields | p. 287 |
Rings Defined | p. 287 |
Fields Defined | p. 292 |
Subrings | p. 293 |
Ring Properties | p. 296 |
Ring Extensions | p. 301 |
Adjoining Roots of Ring Elements | p. 301 |
Polynomial Rings | p. 304 |
Degree of a Polynomial | p. 305 |
Ideals | p. 306 |
Generated Ideals | p. 309 |
Prime and Maximal Ideals | p. 312 |
Integral Domains | p. 314 |
Unique Factorization Domains | p. 319 |
Principal Ideal Domains | p. 321 |
Euclidean Domains | p. 325 |
Polynomials over a Field | p. 328 |
Polynomials over the Integers | p. 332 |
Ring Morphisms | p. 334 |
Properties of Ring Morphisms | p. 336 |
Quotient Rings | p. 339 |
Index | p. 345 |
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