Combining Texts

Ideas for 'On the Philosophy of Logic', 'Philosophy and Scientific Image of Man' and 'The Laws of Thought'

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4 ideas

4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic

8083	Boole applied normal algebra to logic, aiming at an algebra of thought [Boole, by Devlin]

7727	Boole's notation can represent syllogisms and propositional arguments, but not both at once [Boole, by Weiner]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

8943	Three-valued logic says excluded middle and non-contradition are not tautologies [Fisher]

4. Formal Logic / E. Nonclassical Logics / 4. Fuzzy Logic

8945	Fuzzy logic has many truth values, ranging in fractions from 0 to 1 [Fisher]