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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / m. One

7485	For Pythagoreans 'one' is not a number, but the foundation of numbers [Pythagoras, by Watson]

6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry

10157

Tarski improved Hilbert's geometry axioms, and without set-theory [Tarski, by Feferman/Feferman]