Combining Texts

All the ideas for '', 'works' and 'What is Mathematical Truth?'

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6 ideas

4. Formal Logic / E. Nonclassical Logics / 5. Relevant Logic
8720 A logic is 'relevant' if premise and conclusion are connected, and 'paraconsistent' allows contradictions [Priest,G, by Friend]
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]
10. Modality / B. Possibility / 1. Possibility
10269 Mathematics eliminates possibility, as being simultaneous actuality in sets [Putnam]
19. Language / F. Communication / 3. Denial
11214 We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]