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Ideas for 'fragments/reports', 'Philosophy of Logic' and 'Grundgesetze der Arithmetik 1 (Basic Laws)'

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4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic

18953

Modern notation frees us from Aristotle's restriction of only using two class-names in premises [Putnam]

4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic

18949

The universal syllogism is now expressed as the transitivity of subclasses [Putnam]