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Ideas for 'Commentary on 'De Anima'', 'First-order Logic, 2nd-order, Completeness' and 'Criterion of Validity in Reasoning'

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4 ideas

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

14780

Only study logic if you think your own reasoning is deficient [Peirce]

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

10751

Second-order logic needs the sets, and its consequence has epistemological problems [Rossberg]

10757

Henkin semantics has a second domain of predicates and relations (in upper case) [Rossberg]

10759

There are at least seven possible systems of semantics for second-order logic [Rossberg]