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Ideas from 'Science and Method' by Henri Poincaré [1908], by Theme Structure

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6. Mathematics / A. Nature of Mathematics / 2. Geometry
10245 One geometry cannot be more true than another
                        Full Idea: One geometry cannot be more true than another; it can only be more convenient.
                        From: Henri Poincaré (Science and Method [1908], p.65), quoted by Stewart Shapiro - Philosophy of Mathematics
                        A reaction: This is the culminating view after new geometries were developed by tinkering with Euclid's parallels postulate.