Combining Texts

All the ideas for 'fragments/reports', 'works' and 'Science and Method'

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

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7 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5

7791	The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

10245

One geometry cannot be more true than another [Poincaré]

10. Modality / A. Necessity / 2. Nature of Necessity

11002

Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read]

19. Language / F. Communication / 3. Denial

1554	Contradiction is impossible, since only one side of the argument refers to the true facts [Prodicus, by Didymus the Blind]

28. God / B. Proving God / 3. Proofs of Evidence / c. Teleological Proof critique

1555	People used to think anything helpful to life was a god, as the Egyptians think the Nile a god [Prodicus]

28. God / C. Attitudes to God / 5. Atheism

535	The gods are just personified human benefits [Prodicus]

1543	He denied the existence of the gods, saying they are just exaltations of things useful for life [Prodicus]