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Ideas for '', 'Carnap and Logical Truth' and 'Intro to 'Creating the Kingdom of Ends''

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8 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]

11211

If a sound conclusion comes from two errors that cancel out, the path of the argument must matter [Rumfitt]

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]

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

13681

Logical consequence is marked by being preserved under all nonlogical substitutions [Quine, by Sider]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

11210

Standardly 'and' and 'but' are held to have the same sense by having the same truth table [Rumfitt]

13829

If logical truths essentially depend on logical constants, we had better define the latter [Hacking on Quine]

11212

The sense of a connective comes from primitively obvious rules of inference [Rumfitt]

5. Theory of Logic / L. Paradox / 5. Paradoxes in Set Theory / a. Set theory paradoxes

9003	Set theory was struggling with higher infinities, when new paradoxes made it baffling [Quine]