Combining Texts

All the ideas for 'Identity and Spatio-Temporal Continuity', 'Principles of Theoretical Logic' and 'The Semantic Tradition from Kant to Carnap'

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7 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]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / j. Axiom of Choice IX

18270

Choice suggests that intensions are not needed to ensure classes [Coffa]

9. Objects / A. Existence of Objects / 5. Individuation / e. Individuation by kind

13128

'Ultimate sortals' cannot explain ontological categories [Westerhoff on Wiggins]

12. Knowledge Sources / A. A Priori Knowledge / 8. A Priori as Analytic

18263

The semantic tradition aimed to explain the a priori semantically, not by Kantian intuition [Coffa]

12. Knowledge Sources / A. A Priori Knowledge / 11. Denying the A Priori

18272

Platonism defines the a priori in a way that makes it unknowable [Coffa]

15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind

18266

Mathematics generalises by using variables [Coffa]

27. Natural Reality / D. Time / 1. Nature of Time / a. Absolute time

18279

Relativity is as absolutist about space-time as Newton was about space [Coffa]