Ideas from 'Presupposition' by Michael Dummett [1960], by Theme Structure

[found in 'Truth and Other Enigmas' by Dummett,Michael [Duckworth 1978,0-7156-1650-1]].

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4. Formal Logic / A. Syllogistic Logic / 3. Term Logic

19053

Logic would be more natural if negation only referred to predicates

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

19052

Natural language 'not' doesn't apply to sentences