Combining Texts

All the ideas for 'Counterparts and Identity', 'Abstract Objects:intro to Axiomatic Metaphysics' and 'In Metaphysics'

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9 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

18823

To say there could have been people who don't exist, but deny those possible things, rejects Barcan [Stalnaker, by Rumfitt]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

16660

Are things distinct if they are both separate, or if only one of them can be separate? [Duns Scotus, by Pasnau]

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

10414

Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer]

9. Objects / A. Existence of Objects / 2. Abstract Objects / c. Modern abstracta

10415

Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer]

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

16626

Substance is only grasped under the general heading of 'being' [Duns Scotus]

10. Modality / E. Possible worlds / 3. Transworld Objects / c. Counterparts

16409

Unlike Lewis, I defend an actualist version of counterpart theory [Stalnaker]

16411

If possible worlds really differ, I can't be in more than one at a time [Stalnaker]

16412

If counterparts exist strictly in one world only, this seems to be extreme invariant essentialism [Stalnaker]

19. Language / C. Assigning Meanings / 8. Possible Worlds Semantics

16410

Extensional semantics has individuals and sets; modal semantics has intensions, functions of world to extension [Stalnaker]