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Ideas for 'fragments/reports', 'Difficulties of Transfinite Numbers and Types' and 'Introduction to 'Hippias Minor''

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6. Mathematics / C. Sources of Mathematics / 10. Constructivism / b. Intuitionism

9548	A mathematical object exists if there is no contradiction in its definition [Waterfield]

6. Mathematics / C. Sources of Mathematics / 10. Constructivism / d. Predicativism

21559

We need rules for deciding which norms are predicative (unless none of them are) [Russell]

21558

'Predicative' norms are those which define a class [Russell]