Combining Texts

All the ideas for 'Counterparts and Identity', 'Of Civil Liberty' and 'Certain Physical Essays'

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8 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]

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]

14. Science / D. Explanation / 1. Explanation / b. Aims of explanation

16736

Explanation is generally to deduce it from something better known, which comes in degrees [Boyle]

14. Science / D. Explanation / 3. Best Explanation / b. Ultimate explanation

16737

The best explanations get down to primary basics, but others go less deep [Boyle]

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]

24. Political Theory / C. Ruling a State / 2. Leaders / b. Monarchy

21097

Modern monarchies are (like republics) rule by law, rather than by men [Hume]