Guides readers through the development of geometry and basic
proof writing using a historical approach to the topic
In an effort to fully appreciate the logic and structure of
geometric proofs, Revolutions of Geometry places proofs into
the context of geometry’s history, helping readers to understand
that proof writing is crucial to the job of a mathematician.
Written for students and educators of mathematics alike, the book
guides readers through the rich history and influential works, from
ancient times to the present, behind the development of geometry.
As a result, readers are successfully equipped with the necessary
logic to develop a full understanding of geometric theorems.
Following a presentation of the geometry of ancient Egypt,
Babylon, and China, the author addresses mathematical philosophy
and logic within the context of works by Thales, Plato, and
Aristotle. Next, the mathematics of the classical Greeks is
discussed, incorporating the teachings of Pythagoras and his
followers along with an overview of lower-level geometry using
Euclid’s Elements. Subsequent chapters explore the work of
Archimedes, Viete’s revolutionary contributions to algebra,
Descartes’ merging of algebra and geometry to solve the Pappus
problem, and Desargues’ development of projective geometry. The
author also supplies an excursion into non-Euclidean geometry,
including the three hypotheses of Saccheri and Lambert and the near
simultaneous discoveries of Lobachevski and Bolyai. Finally, modern
geometry is addressed within the study of manifolds and elliptic
geometry inspired by Riemann’s work, Poncelet’s return to
projective geometry, and Klein’s use of group theory to
characterize different geometries.
The book promotes the belief that in order to learn how to write
proofs, one needs to read finished proofs, studying both their
logic and grammar. Each chapter features a concise introduction to
the presented topic, and chapter sections conclude with exercises
that are designed to reinforce the material and provide readers
with ample practice in writing proofs. In addition, the overall
presentation of topics in the book is in chronological order,
helping readers appreciate the relevance of geometry within the
historical development of mathematics.
Well organized and clearly written, Revolutions of
Geometry is a valuable book for courses on modern geometry and
the history of mathematics at the upper-undergraduate level. It is
also a valuable reference for educators in the field of
mathematics.
Jadual kandungan
Preface.
Acknowledgments.
PART I FOUNDATIONS.
1 The First Geometers.
1.1 Egypt.
1.2 Babylon.
1.3 China.
2 Thales.
2.1 The Axiomatic System.
2.2 Deductive Logic.
2.3 Proof Writing.
3 Plato and Aristotle.
3.1 Form.
3.2 Categorical Propositions..
3.3 Categorical Syllogisms.
3.4 Figures.
PART II THE GOLDEN AGE.
4 Pythagoras.
4.1 Number Theory.
4.2 The Pythagorean Theorem.
4.3 Archytas.
4.4 The Golden Ratio.
5 Euclid.
5.1 The Elements.
5.2 Constructions.
5.3 Triangles.
5.4 Parallel Lines.
5.5 Circles.
5.6 The Pythagorean Theorem Revisited.
6 Archimedes.
6.1 The Archimedean Library.
6.2 The Method of Exhaustion.
6.3 The Method.
6.4 Preliminaries to the Proof.
6.5 The Volume of a Sphere.
PART III ENLIGHTENMENT.
7 François Viète.
7.1 The Analytic Art.
7.2 Three Problems.
7.3 Conic Sections.
7.4 The Analytic Art in Two Variables.
8 René Descartes.
8.1 Compasses.
8.2 Method.
8.3 Analytic Geometry.
9 Gérard Desargues.
9.1 Projections.
9.2 Points at Infinity.
9.3 Theorems of Desargues and Menelaus.
9.4 Involutions.
PART IV A STRANGE NEW WORLD.
10 Giovanni Saccheri.
10.1 The Question of Parallels.
10.2 The Three Hypotheses.
10.3 Conclusions for Two Hypotheses.
10.4 Properties of Parallel Lines.
10.5 Parallelism Redefined.
11 Johann Lambert.
11.1 The Three Hypotheses Revisited.
11.2 Polygons.
11.3 Omega Triangles.
11.4 Pure Reason.
12 Nicolai Lobachevski and János Bolyai.
12.1 Parallel Fundamentals.
12.2 Horocycles.
12.3 The Surface of a Sphere.
12.4 Horospheres.
12.5 Evaluating the Pi Function.
PART V NEW DIRECTIONS.
13 Bernhard Riemann.
13.1 Metric Spaces.
13.2 Topological Spaces.
13.3 Stereographic Projection.
13.4 Consistency of Non-Euclidean Geometry.
14 Jean-Victor Poncelet.
14.1 The Projective Plane.
14.2 Duality.
14.3 Perspectivity.
14.4 Homogeneous Coordinates.
15 Felix Klein.
15.1 Group Theory.
15.2 Transformation Groups.
15.3 The Principal Group.
15.4 Isometries of the Plane.
15.5 Consistency of Euclidean Geometry.
References.
Index.
Mengenai Pengarang
Michael O’Leary, Ph D, is Professor of Mathematics at the College of Du Page. He received his Ph D in mathematics from the University of California, Irvine in 1994.
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