Combining Texts

Ideas for 'The Case for Closure', 'Necessity and Non-Existence' and 'Philosophical Logic'

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4 ideas

10. Modality / A. Necessity / 4. De re / De dicto modality

15420

De re modality seems to apply to objects a concept intended for sentences [Burgess]

10. Modality / A. Necessity / 6. Logical Necessity

15417

Logical necessity has two sides - validity and demonstrability - which coincide in classical logic [Burgess]

15419

General consensus is S5 for logical modality of validity, and S4 for proof [Burgess]

10. Modality / A. Necessity / 8. Transcendental Necessity

15064

Proper necessary truths hold whatever the circumstances; transcendent truths regardless of circumstances [Fine,K]