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# Real Analysis. A Constructive Approach. Pure and Applied Mathematics: A Wiley Series of Texts, Monographs and Tracts

• Published: December 2006
• Region: Global
• 320 Pages
• John Wiley and Sons Ltd

A unique approach to analysis that lets you apply mathematics across a range of subjects

This innovative text sets forth a thoroughly rigorous modern account of the theoretical underpinnings of calculus: continuity, differentiability, and convergence. Using a constructive approach, every proof of every result is direct and ultimately computationally verifiable. In particular, existence is never established by showing that the assumption of non-existence leads to a contradiction. The ultimate consequence of this method is that it makes sense—not just to math majors but also to students from all branches of the sciences.

The text begins with a construction of the real numbers beginning with the rationals, using interval arithmetic. This introduces readers to the reasoning and proof-writing skills necessary for doing and communicating mathematics, and it sets the foundation for the rest of the text, which includes:
- Early use of the Completeness Theorem to prove a helpful Inverse Function Theorem
- Sequences, limits and series, and the careful derivation of formulas and estimates for important functions
- Emphasis on uniform continuity and its consequences,

Preface.

Acknowledgements.

Introduction.

0 Preliminaries.

0.1 The Natural Numbers.

0.2 The Rationals.

1 The Real Numbers and Completeness.

1.0 Introduction.

1.1 Interval Arithmetic.

1.2 Families of Intersecting Intervals.

1.3 Fine Families.

1.4 Definition of the Reals.

1.5 Real Number Arithmetic.

1.6 Rational Approximations.

1.7 Real Intervals and Completeness.

1.8 Limits and Limiting Families.

Appendix: The Goldbach Number and Trichotomy.

2 An Inverse Function Theorem and its Application.

2.0 Introduction.

2.1 Functions and Inverses.

2.2 An Inverse Function Theorem.

2.3 The Exponential Function.

2.4 Natural Logs and the Euler Number.

3 Limits. Sequences and Series.

3.1 Sequences and Convergence.

3.2 Limits of Functions.

3.3 Series of Numbers.

Appendix I: Some Properties of Exp and Log.

Appendix 11: Rearrangements of Series.

4 Uniform Continuity.

4.1 Definitions and Elementary Properties.

4.2 Limits and Extensions.

Appendix I: Are there Non-Continuous Functions?

Appendix XI: Continuity of Double-Sided Inverses.

Appendix III: The Goldbach Function.

5 The Riemann Integral.

5.1 Definition and Existence.

5.2 Elementary Properties.

5.3 Extensions and Improper Integrals.

6 Differentiation.

6.1 Definitions and Basic Properties.

6.2 The Arithmetic of Differentiability.

6.3 Two Important Theorems.

6.4 Derivative Tools.

6.5 Integral Tools.

7 Sequences and Series of Functions.

7.1 Sequences of Functions.

7.2 Integrals and Derivatives of Sequences.

7.3 Power Series.

7.4 Taylor Series.

7.5 The Periodic Functions.

Appendix: Binomial Issues.

8 The Complex Numbers and Fourier Series.

8.0 Introduction.

8.1 The Complex Numbers C.

8.2 Complex Functions and Vectors.

8.3 Fourier Series Theory.

References.

Index.

“The first chapters are presented at a very nice leisurely pace, which makes reading and learning enjoyable.” (Zentralblatt MATH, 2007)

"Very suitable for self-study by undergraduates at all levels..." (CHOICE, August 2007)

"...deserves to be read. Even if you do not subscribe to the constructive viewpoint, you'll learn something and find plenty of material to exploit in your classical analysis courses." (MAA Reviews, December 23, 2006)

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