Combining Texts

All the ideas for '', 'Sentences' and 'Elements of Intuitionism (2nd ed)'

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6 ideas

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

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Mathematical statements and entities that result from an infinite process must lack a truth-value [Dummett]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

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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]

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The sense of a connective comes from primitively obvious rules of inference [Rumfitt]

19. Language / F. Communication / 3. Denial

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We learn 'not' along with affirmation, by learning to either affirm or deny a sentence [Rumfitt]

29. Religion / B. Monotheistic Religion / 4. Christianity / d. Heresy

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Heretics should be eradicated like wolves [Aquinas]