Combining Texts

All the ideas for 'In Praed.', 'Completeness of Axioms of Logic' and 'Deriving Kripkean Claims with Abstract Objects'

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4 ideas

4. Formal Logic / C. Predicate Calculus PC / 3. Completeness of PC

17751

Gödel proved the completeness of first order predicate logic in 1930 [Gödel, by Walicki]

9. Objects / A. Existence of Objects / 2. Abstract Objects / a. Nature of abstracta

10558

Abstract objects are actually constituted by the properties by which we conceive them [Zalta]

9. Objects / B. Unity of Objects / 2. Substance / a. Substance

16776

Substance is an intrinsic thing, so parts of substances can't also be intrinsic things [Duns Scotus]

18. Thought / E. Abstraction / 2. Abstracta by Selection

10557

Abstract objects are captured by second-order modal logic, plus 'encoding' formulas [Zalta]