Combining Texts

All the ideas for 'Letters to Edward Stillingfleet', 'Improvement of Understanding' and 'Foundations of Geometry'

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6 ideas

2. Reason / D. Definition / 2. Aims of Definition
16541 All the intrinsic properties of a thing should be deducible from its definition [Spinoza]
5. Theory of Logic / C. Ontology of Logic / 3. If-Thenism
10053 Geometrical axioms imply the propositions, but the former may not be true [Russell]
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
10052 Geometry is united by the intuitive axioms of projective geometry [Russell, by Musgrave]
9. Objects / D. Essence of Objects / 3. Individual Essences
15990 Every individual thing which exists has an essence, which is its internal constitution [Locke]
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
15994 If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke]
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]