Combining Texts

All the ideas for 'On Motion', 'works' and 'Entity and Identity'

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5 ideas

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / a. Axioms for numbers
3338 Numbers have been defined in terms of 'successors' to the concept of 'zero' [Peano, by Blackburn]
6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / d. Peano arithmetic
5897 0 is a non-successor number, all successors are numbers, successors can't duplicate, if P(n) and P(n+1) then P(all-n) [Peano, by Flew]
9. Objects / A. Existence of Objects / 2. Abstract Objects / b. Need for abstracta
16980 We need a logical use of 'object' as predicate-worthy, and an 'ontological' use [Strawson,P]
9. Objects / D. Essence of Objects / 3. Individual Essences
16979 It makes no sense to ask of some individual thing what it is that makes it that individual [Strawson,P]
27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity
12709 Motion is not absolute, but consists in relation [Leibniz]