Non-euclidean Geometry

Includes Introduction; The parallel postulate: A blot on Euclid?; The parallel postulate: 1663-1826; Lobachevskii and Bolyai; Criticisms; Reconsidering non-Euclidean geometry; and, Further reading.

---

This book includes: Introduction; The parallel postulate: A blot on Euclid?; The parallel postulate: 1663-1826; Lobachevskii and Bolyai; Criticisms; Reconsidering non-Euclidean geometry; and, Further reading.