Combining Texts

All the ideas for 'The Nature of Necessity', 'Principles of Theoretical Logic' and 'Psychophysical supervenience'

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5 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

8. Modes of Existence / B. Properties / 4. Intrinsic Properties

15456

Extrinsic properties, unlike intrinsics, imply the existence of a separate object [Kim, by Lewis]

10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism

18383

Plantinga says there is just this world, with possibilities expressed in propositions [Plantinga, by Armstrong]

10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation

11891

Possibilities for an individual can only refer to that individual, in some possible world [Plantinga, by Mackie,P]

28. God / B. Proving God / 2. Proofs of Reason / a. Ontological Proof

20704

A possible world contains a being of maximal greatness - which is existence in all worlds [Plantinga, by Davies,B]