Combining Texts

All the ideas for 'fragments/reports', 'Scientific Thought' and 'Set Theory and related topics (2nd ed)'

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

8 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / e. Equivalence classes
8920 Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz]
9. Objects / E. Objects over Time / 4. Four-Dimensionalism
14759 A thing is simply a long event, linked by qualities, and spatio-temporal unity [Broad]
11842 If short-lived happenings like car crashes are 'events', why not long-lived events like Dover Cliffs? [Broad]
9. Objects / E. Objects over Time / 8. Continuity of Rivers
579 Cratylus said you couldn't even step into the same river once [Cratylus, by Aristotle]
13. Knowledge Criteria / D. Scepticism / 1. Scepticism
578 Cratylus decided speech was hopeless, and his only expression was the movement of a finger [Cratylus, by Aristotle]
27. Natural Reality / D. Time / 1. Nature of Time / g. Growing block
8160 The present and past exist, but the future does not [Broad, by Dummett]
14609 We could say present and past exist, but not future, so that each event adds to the total history [Broad]
27. Natural Reality / D. Time / 2. Passage of Time / d. Time series
22933 We imagine the present as a spotlight, moving across events from past to future [Broad]