Combining Texts

All the ideas for 'Life of Pythagoras', 'Letters' and 'works'

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

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4 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]

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 / E. Analyticity / 4. Analytic/Synthetic Critique

21338

I will even consider changing a meaning to save a law; I question the meaning-fact cleavage [Quine]

28. God / A. Divine Nature / 6. Divine Morality / b. Euthyphro question

1515	Pythagoreans believe it is absurd to seek for goodness anywhere except with the gods [Iamblichus]