Chapter 2: An ancient theorem and a modern question
Description goes here.
2.1 The Pythagorean theorem
2.2 Euclidâs postulates
2.3 Similar-areas proof of the Pythagorean theorem
2.4 Hyperbolic geometry: conformal picture
2.5 Other representations of hyperbolic geometry
2.6 Historical aspects of hyperbolic geometry
2.7 Relation to physical space
Further Reading
Art
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