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Colophon Colophon

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This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/

2018 Edition, compiled October, 2020

ISBN-13: 978-1717134813

ISBN-10: 1717134815

Cover image: Five geodesic paths between two points in a two-holed torus with constant curvature.