Combining Texts

All the ideas for 'On Simple Theories of a Complex World', 'The Ages of the World' and 'Counterparts and Identity'

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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 / B. Scientific Theories / 1. Scientific Theory

21687

It seems obvious to prefer the simpler of two theories, on grounds of beauty and convenience [Quine]

21688

There are four suspicious reasons why we prefer simpler theories [Quine]

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]

23. Ethics / C. Virtue Theory / 2. Elements of Virtue Theory / e. Character

20957

We don't choose our characters, yet we still claim credit for the actions our characters perform [Schelling]