Combining Texts

All the ideas for 'Reply to Richards', 'On the spiritual perfection of life' and 'works'

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

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4 ideas

1. Philosophy / E. Nature of Metaphysics / 3. Metaphysical Systems

22140

The greatest philosophers are methodical; it is what makes them great [Grice]

2. Reason / C. Styles of Reason / 1. Dialectic

22102

Arguing with opponents uncovers truths, and restrains falsehoods [Aquinas]

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]