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The Elements of Non-Euclidean Geometry

The Elements of Non-Euclidean Geometry
by D.M.Y. Sommerville

Publisher: G.Bell & Sons Ltd. 1914
ISBN/ASIN: 0486442225
Number of pages: 158

Renowned for its lucid yet meticulous exposition, this text follows the development of non-Euclidean geometry from a fundamental analysis of the concept of parallelism to such advanced topics as inversion and transformations. It features the relation between parataxy and parallelism, the absolute measure, the pseudosphere, and Gauss' proof of the defect-area theorem.

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