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Ideas for 'Issues of Pragmaticism', 'Conditionals (Stanf)' and 'Ontology'

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2 ideas

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / c. Derivation rules of PL

14273

Conditional Proof is only valid if we accept the truth-functional reading of 'if' [Edgington]

4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic

7689	The modal logic of C.I.Lewis was only interpreted by Kripke and Hintikka in the 1960s [Jacquette]