Combining Texts

All the ideas for 'Counterparts and Identity', 'Confessio naturae contra atheistas' and 'Summa quaestionum super Sententias'

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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]

8. Modes of Existence / A. Relations / 1. Nature of Relations

16659

Relations do not add anything to reality, though they are real aspects of the world [Olivi]

9. Objects / A. Existence of Objects / 5. Individuation / c. Individuation by location

12693

A body is that which exists in space [Leibniz]

9. Objects / C. Structure of Objects / 4. Quantity of an Object

16673

Quantity just adds union and location to the extension of parts [Olivi]

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]

27. Natural Reality / G. Biology / 5. Species

16663

Things are limited by the species to certain modes of being [Olivi]