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'', 'Three Varieties of Knowledge' and 'Russell's Metaphysical Logic'
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5 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 / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
11210
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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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11212
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The sense of a connective comes from primitively obvious rules of inference [Rumfitt]
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5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions
21727
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Definite descriptions theory eliminates the King of France, but not the Queen of England [Linsky,B]
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5. Theory of Logic / I. Semantics of Logic / 5. Extensionalism
21719
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Extensionalism means what is true of a function is true of coextensive functions [Linsky,B]
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