Combining Texts

All the ideas for 'A Combinatorial Theory of Possibility', 'Practical Necessity' and 'works'

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

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5 ideas

3. Truth / B. Truthmakers / 6. Making Negative Truths

15547

Negative existentials have 'totality facts' as truthmakers [Armstrong, by Lewis]

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]

10. Modality / A. Necessity / 10. Impossibility

23283

Necessity implies possibility, but in experience it matters which comes first [Williams,B]

10. Modality / B. Possibility / 1. Possibility

15542

All possibilities are recombinations of properties in the actual world [Armstrong, by Lewis]