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Ideas for 'fragments/reports', 'On What Grounds What' and 'Philebus'

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6. Mathematics / A. Nature of Mathematics / 2. Geometry

9867	It is absurd to define a circle, but not be able to recognise a real one [Plato]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / f. Arithmetic

9865	Daily arithmetic counts unequal things, but pure arithmetic equalises them [Plato]

6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / a. For mathematical platonism

13741

If 'there are red roses' implies 'there are roses', then 'there are prime numbers' implies 'there are numbers' [Schaffer,J]