Geodesic

Semigroups
p. 9-56
Infinite groups
p. 57-90
Ordered algebraic systems
p. 91-108
Universal algebras
p. 109-136
Linear inequalities
p. 137-187
Riemannian and pseudo-Riemannian spaces
p. 191-220
Geometry and physical space-time
p. 221-265