Combining Texts

All the ideas for 'Second Philosophy', 'A Problem about Substitutional Quantification?' and 'Of liberty, Fate and God's grace'

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

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3 ideas

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

10594

Henkin semantics is more plausible for plural logic than for second-order logic [Maddy]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10792

The substitutional quantifier is not in competition with the standard interpretation [Kripke, by Marcus (Barcan)]

9. Objects / D. Essence of Objects / 7. Essence and Necessity / b. Essence not necessities

13082

The complete concept of an individual includes contingent properties, as well as necessary ones [Leibniz]