Ideas from '"Yes" and "No"' by Ian Rumfitt [2000], by Theme Structure

[found in 'Mind' (ed/tr -) [- ,]].

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5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
If a sound conclusion comes from two errors that cancel out, the path of the argument must matter
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
Standardly 'and' and 'but' are held to have the same sense by having the same truth table
The sense of a connective comes from primitively obvious rules of inference
19. Language / H. Pragmatics / 2. Denial
We learn 'not' along with affirmation, by learning to either affirm or deny a sentence