Combining Texts
Ideas for
'How the Laws of Physics Lie', 'Penguin Dictionary of Philosophy' and 'The Later Works (17 vols, ed Boydston)'
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7 ideas
5. Theory of Logic / A. Overview of Logic / 5. First-Order Logic
22873
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Liberalism should improve the system, and not just ameliorate it [Dewey]
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5. Theory of Logic / B. Logical Consequence / 6. Entailment
6877
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Entailment is logical requirement; it may be not(p and not-q), but that has problems [Mautner]
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5. Theory of Logic / B. Logical Consequence / 7. Strict Implication
6880
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Strict implication says false propositions imply everything, and everything implies true propositions [Mautner]
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5. Theory of Logic / B. Logical Consequence / 8. Material Implication
6879
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'Material implication' is defined as 'not(p and not-q)', but seems to imply a connection between p and q [Mautner]
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6878
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A person who 'infers' draws the conclusion, but a person who 'implies' leaves it to the audience [Mautner]
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5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence
6889
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Vagueness seems to be inconsistent with the view that every proposition is true or false [Mautner]
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5. Theory of Logic / G. Quantification / 1. Quantification
6890
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Quantifiers turn an open sentence into one to which a truth-value can be assigned [Mautner]
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