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Ideas for 'Three Varieties of Knowledge', 'Carnap and Logical Truth' and 'Model Theory'

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3 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13010

In order to select the logic justified by experience, we would need to use a lot of logic [Boghossian on Quine]

5. Theory of Logic / A. Overview of Logic / 5. First-Order Logic

10478

Since first-order languages are complete, |= and |- have the same meaning [Hodges,W]

5. Theory of Logic / A. Overview of Logic / 6. Classical Logic

9002	Elementary logic requires truth-functions, quantifiers (and variables), identity, and also sets of variables [Quine]