Combining Texts

All the ideas for 'fragments/reports', 'Lewis on Perdurance versus Endurance' and 'A Note on the entscheidungsproblem'

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3 ideas

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry

13007

Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz]

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]