# An Axiomatic Approach to Geometry

## Geometric Trilogy I

• Francis Borceux
Book

1. Front Matter
Pages I-XV
2. Francis Borceux
Pages 1-7
3. Francis Borceux
Pages 9-42
4. Francis Borceux
Pages 43-110
5. Francis Borceux
Pages 111-166
6. Francis Borceux
Pages 167-196
7. Francis Borceux
Pages 197-241
8. Francis Borceux
Pages 243-303
9. Francis Borceux
Pages 305-353
10. Back Matter
Pages 355-403

### Introduction

Focusing methodologically on those historical aspects that are relevant to supporting intuition in axiomatic approaches to geometry, the book develops systematic and modern approaches to the three core aspects of axiomatic geometry: Euclidean, non-Euclidean and projective. Historically, axiomatic geometry marks the origin of formalized mathematical activity. It is in this discipline that most historically famous problems can be found, the solutions of which have led to various presently very active domains of research, especially in algebra. The recognition of the coherence of two-by-two contradictory axiomatic systems for geometry (like one single parallel, no parallel at all, several parallels) has led to the emergence of mathematical theories based on an arbitrary system of axioms, an essential feature of contemporary mathematics.

This is a fascinating book for all those who teach or study axiomatic geometry, and who are interested in the history of geometry or who want to see a complete proof of one of the famous problems encountered, but not solved, during their studies: circle squaring, duplication of the cube, trisection of the angle, construction of regular polygons, construction of models of non-Euclidean geometries, etc. It also provides hundreds of figures that support intuition.

Through 35 centuries of the history of geometry, discover the birth and follow the evolution of those innovative ideas that allowed humankind to develop so many aspects of contemporary mathematics. Understand the various levels of rigor which successively established themselves through the centuries. Be amazed, as mathematicians of the 19th century were, when observing that both an axiom and its contradiction can be chosen as a valid basis for developing a mathematical theory. Pass through the door of this incredible world of axiomatic mathematical theories!

### Keywords

51-01, 51-03, 01A05, 51A05, 51A15, 51A30, 51A35, 51B05, 51B20 Euclidean geometry Non-Euclidean geometry axiomatic geometry classical problems in geometry projective geometry

#### Authors and affiliations

• Francis Borceux
• 1
1. 1.Université catholique de LouvainLouvain-la-NeuveBelgium

### Bibliographic information

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