Combining Texts

All the ideas for 'Counterparts and Identity', 'A Dictionary of Philosophy' and 'On the Conservation of Force'

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10 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]

12. Knowledge Sources / B. Perception / 4. Sense Data / a. Sense-data theory

6455	Maybe 'sense-data' just help us to talk about unusual perceptual situations [Lacey]

12. Knowledge Sources / B. Perception / 4. Sense Data / b. Nature of sense-data

6454	Where do sense-data begin or end? Can they change? What sort of thing are they? [Lacey]

6453	Some claim sense-data are public, and are parts of objects [Lacey]

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 / A. Classical Physics / 2. Thermodynamics / a. Energy

20646

Helmholtz used 'energy' to mathematically link heat, light, electricity and magnetism [Helmholtz, by Watson]

27. Natural Reality / A. Classical Physics / 2. Thermodynamics / c. Conservation of energy

20973

All forces conserve the sum of kinetic and potential energy [Helmholtz, by Papineau]