Combining Texts

All the ideas for 'reports', 'Basic Problems of Phenomenology' and 'works'

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5 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]

5. Theory of Logic / C. Ontology of Logic / 2. Platonism in Logic

15571

The idea of an atemporal realm of validity is as implausible as medieval theology [Heidegger]

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 / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]

23. Ethics / F. Existentialism / 6. Authentic Self

15581

Dasein is always only that which it has chosen to be [Heidegger]