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Ideas for 'fragments/reports', 'Remarks on axiomatised set theory' and 'Unpublished Notebooks 1872-74'

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

14880

Logic is just slavery to language [Nietzsche]

5. Theory of Logic / J. Model Theory in Logic / 3. Löwenheim-Skolem Theorems

17878

If a 1st-order proposition is satisfied, it is satisfied in a denumerably infinite domain [Skolem]