Combining Texts

All the ideas for 'fragments/reports', 'A Plea for Substitutional Quantification' and 'Philosophical Letters from England'

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5 ideas

4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic
9470 Modal logic is not an extensional language [Parsons,C]
5. Theory of Logic / G. Quantification / 4. Substitutional Quantification
9469 Substitutional existential quantifier may explain the existence of linguistic entities [Parsons,C]
9468 On the substitutional interpretation, '(∃x) Fx' is true iff a closed term 't' makes Ft true [Parsons,C]
10. Modality / A. Necessity / 8. Transcendental Necessity
490 Everything happens by reason and necessity [Leucippus]
23. Ethics / B. Contract Ethics / 2. Golden Rule
7844 The Golden Rule is accepted everywhere, and gives a fixed target for morality [Voltaire]