Combining Texts

All the ideas for 'On Motion', 'works' and 'Improvement of Understanding'

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5 ideas

2. Reason / D. Definition / 2. Aims of Definition
16541 All the intrinsic properties of a thing should be deducible from its definition [Spinoza]
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]
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
13073 To understand the properties we must know the essence, as with a circle [Spinoza]
27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity
12709 Motion is not absolute, but consists in relation [Leibniz]