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'', 'Relativism' and 'Models'
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6 ideas
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
11211
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If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]
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5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
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Logical relativism appears if we allow more than one legitimate logical system [O'Grady]
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5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence
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A third value for truth might be "indeterminate", or a point on a scale between 'true' and 'false' [O'Grady]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
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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]
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4704
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Wittgenstein reduced Russell's five primitive logical symbols to a mere one [O'Grady]
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