Combining Texts

All the ideas for 'Counterparts and Identity', 'A Matter of Principle' and 'Farewell to Reality: fairytale physics'

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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]
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]
25. Social Practice / E. Policies / 4. Taxation
18639 If we assess what people would buy in an imaginary insurance market, our taxes could copy it [Dworkin, by Kymlicka]
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / b. Fields
21731 Fields can be 'scalar', or 'vector', or 'tensor', or 'spinor' [Baggott]
21730 A 'field' is a property with a magnitude, distributed across all of space and time [Baggott]
27. Natural Reality / B. Modern Physics / 4. Standard Model / b. Standard model
21732 The current standard model requires 61 particles [Baggott]