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Ideas for 'The Evolution of Logic', 'Philosophical Logic: Intro to Advanced Topics' and 'Machine Man'

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2 ideas

5. Theory of Logic / K. Features of Logics / 5. Incompleteness

13852

Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward]

5. Theory of Logic / K. Features of Logics / 6. Compactness

13496

First-order logic is 'compact': consequences of a set are consequences of a finite subset [Hart,WD]