Euclid's Elements, Table of Contents

Prematter : Introduction : Using the Geometry Applet : About the text : Euclid : A quick trip through the Elements : References to Euclid’s Elements on the Web : Subject index

**Book I.** The fundamentals of geometry: theories of triangles, parallels, and area. : Definitions (23)
Postulates (5)
Common Notions (5)
Propositions (48)

**Book II.** Geometric algebra. : Definitions (2)
Propositions (13)

**Book III.** Theory of circles. : Definitions (11)
Propositions (37)

**Book IV.** Constructions for inscribed and circumscribed figures. : Definitions (7)
Propositions (16)

**Book V.** Theory of abstract proportions. : Definitions (18)
Propositions (25)

**Book VI.** Similar figures and proportions in geometry. : Definitions (11)
Propositions (37) |

**Book VII.** Fundamentals of number theory. : Definitions (22)
Propositions (39)

**Book VIII.** Continued proportions in number theory. : Propositions (27)

**Book IX.** Number theory. : Propositions (36)

**Book X.** Classification of incommensurables. : Definitions I (4)
Propositions 1-47
Definitions II (6)
Propositions 48-84
Definitions III (6)
Propositions 85-115

**Book XI.** Solid geometry. : Definitions (28)
Propositions (39)

**Book XII.** Measurement of figures. : Propositions (18)

**Book XIII.** Regular solids. : Propositions (18)

Table of Contents