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Ideas for 'Commentary on 'De Anima'', 'Knowledge and the Philosophy of Number' and 'On Concept and Object'

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2 ideas

6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers

9949	There is the concept, the object falling under it, and the extension (a set, which is also an object) [Frege, by George/Velleman]

6. Mathematics / B. Foundations for Mathematics / 6. Mathematics as Set Theory / b. Mathematics is not set theory

23621

Numbers are properties, not sets (because numbers are magnitudes) [Hossack]