Combining Texts

All the ideas for 'fragments/reports', 'Logic [1897]' and 'Difficulties of Transfinite Numbers and Types'

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5 ideas

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]

9. Objects / E. Objects over Time / 8. Continuity of Rivers

579	Cratylus said you couldn't even step into the same river once [Cratylus, by Aristotle]

13. Knowledge Criteria / C. External Justification / 2. Causal Justification

11052

Psychological logic can't distinguish justification from causes of a belief [Frege]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

578	Cratylus decided speech was hopeless, and his only expression was the movement of a finger [Cratylus, by Aristotle]