Combining Texts

All the ideas for 'The Varieties of Necessity', 'Foundations of Geometry' and 'Lewis on Perdurance versus Endurance'

expand these ideas     |    start again     |     specify just one area for these texts

---

6 ideas

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]

7. Existence / B. Change in Existence / 1. Nature of Change

15541

Maybe particles are unchanging, and intrinsic change in things is their rearrangement [Lowe, by Lewis]

10. Modality / C. Sources of Modality / 1. Sources of Necessity

9216	Each area of enquiry, and its source, has its own distinctive type of necessity [Fine,K]

13. Knowledge Criteria / C. External Justification / 7. Testimony

9214	Unsupported testimony may still be believable [Fine,K]

26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism

9215	Causation is easier to disrupt than logic, so metaphysics is part of nature, not vice versa [Fine,K]