Combining Texts

All the ideas for 'reports', 'Elucidation of some points in E.Schrder' and 'Deriving Kripkean Claims with Abstract Objects'

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4 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set

14238

A class is an aggregate of objects; if you destroy them, you destroy the class; there is no empty class [Frege]

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]

10. Modality / A. Necessity / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]

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

10557

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