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 (14)
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 (16)
Propositions (115)
Book XI : Solid geometry
Definitions (28)
Propositions (39)
Book XII : Measurement of figures
Propositions (18)
Book XIII : Regular solids
Propositions (18)