Combining Texts
Ideas for
'The Intrinsic Quality of Experience', 'Begriffsschrift' and 'Elements of Mathematical Logic'
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3 ideas
4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC
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I don't use 'subject' and 'predicate' in my way of representing a judgement [Frege]
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4. Formal Logic / C. Predicate Calculus PC / 2. Tools of Predicate Calculus / d. Universal quantifier ∀
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For Frege, 'All A's are B's' means that the concept A implies the concept B [Frege, by Walicki]
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4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic
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Lukasiewicz's L3 logic has three truth-values, T, F and I (for 'indeterminate') [Lukasiewicz, by Fisher]
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