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Ideas for
'Introduction to Russell's Theory of Types', 'Alcibiades' and 'On the Philosophy of Logic'
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3 ideas
4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic
8943
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Three-valued logic says excluded middle and non-contradition are not tautologies [Fisher]
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4. Formal Logic / E. Nonclassical Logics / 4. Fuzzy Logic
8945
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Fuzzy logic has many truth values, ranging in fractions from 0 to 1 [Fisher]
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4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / p. Axiom of Reducibility
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The Axiom of Reducibility is self-effacing: if true, it isn't needed [Quine]
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