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Ideas for 'fragments/reports', 'Trees, Terms and Truth' and 'Rights of Man'

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6 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

18912

Was logic a branch of mathematics, or mathematics a branch of logic? [Engelbretsen]

5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens

8078	Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

6023	Every proposition is either true or false [Chrysippus, by Cicero]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

18905

Propositions can be analysed as pairs of terms glued together by predication [Engelbretsen]

18922

Logical syntax is actually close to surface linguistic form [Engelbretsen]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

18908

Standard logic only negates sentences, even via negated general terms or predicates [Engelbretsen]