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The Elements of Non-Euclidean Geometry (Dover Books on Mathematics)
The Elements of Non-Euclidean Geometry - Dover Books on Mathematics Author:D. M.Y. Sommerville �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 t... more »he defect-area theorem. 1914 edition. Includes 133 figures.« less