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Ideas for 'Commentary on 'De Anima'', 'The Logical Structure of the World (Aufbau)' and 'Logic for Philosophy'

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2 ideas

5. Theory of Logic / K. Features of Logics / 4. Completeness
In a complete logic you can avoid axiomatic proofs, by using models to show consequences [Sider]
5. Theory of Logic / K. Features of Logics / 6. Compactness
Compactness surprisingly says that no contradictions can emerge when the set goes infinite [Sider]