Combining Texts

All the ideas for 'On Motion', 'Russell' and 'Knowledge by Acquaintance and Description-1'

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5 ideas

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

6408	Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling]

8. Modes of Existence / D. Universals / 2. Need for Universals

21710

We know a universal in 'yellow differs from blue' or 'yellow resembles blue less than green does' [Russell]

12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence

6414	Two propositions might seem self-evident, but contradict one another [Grayling]

12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems

8854	My 'acquaintance' with sense-data is nothing like my knowing New York [Williams,M on Russell]

27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity

12709

Motion is not absolute, but consists in relation [Leibniz]