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Euclidean Plane and its Relatives (Petrunin)

Euclidean Plane and its Relatives (Petrunin)

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May 5, 2023
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This book is designed for a semester-long course in Foundations of Geometry and meant to be rigorous, conservative, elementary and minimalistic.

Thumbnail: 2-sphere wireframe as an orthogonal projection. (CC BY-SA 3.0; Geek3 via Wikipedia)

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