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Geometry Revisited Among the many theorems in geometry found in this work are the theorems of Ceva, Menelaus, Pappus, Desargues, Pascal, and Brianchon. A proof is given of Morl... »
Projective Geometry In Euclidean geometry, constructions are made with a ruler and a compass. Projective geometry is simpler: Its construction require only a ruler. This classic... »
Introduction to Geometry This undergraduate textbook attempts to revitalize the topic of geometry by emphasizing the idea of transformation and unusual environments such as affine sp... »