Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Pascal Engel and Rudolph Carnap

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3 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

13342

Carnap defined consequence by contradiction, but this is unintuitive and changes with substitution [Tarski on Carnap]

5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention

13251

Each person is free to build their own logic, just by specifying a syntax [Carnap]

5. Theory of Logic / D. Assumptions for Logic / 1. Bivalence

4752	Deflationism must reduce bivalence ('p is true or false') to excluded middle ('p or not-p') [Engel]