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Ideas for 'fragments/reports', 'Contemporary theories of Knowledge (2nd)' and 'Formal and Transcendental Logic'

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4 ideas

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 / C. Ontology of Logic / 1. Ontology of Logic

21222

Logicians presuppose a world, and ignore logic/world connections, so their logic is impure [Husserl, by Velarde-Mayol]

21223

Phenomenology grounds logic in subjective experience [Husserl, by Velarde-Mayol]

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

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