Combining Texts

All the ideas for '', 'Barcan Formulae' and 'works'

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7 ideas

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
15380 Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem]
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
11211 If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
11210 Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]
11212 The sense of a connective comes from primitively obvious rules of inference [Rumfitt]
7. Existence / A. Nature of Existence / 6. Criterion for Existence
3534 To be is to have causal powers [Alexander,S]
17. Mind and Body / A. Mind-Body Dualism / 6. Epiphenomenalism
3398 Epiphenomenalism makes the mind totally pointless [Alexander,S]
19. Language / F. Communication / 3. Denial
11214 We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]