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Ideas for 'New Scientist articles', 'Grundlagen der Arithmetik (Foundations)' and 'On the Essence of Human Freedom'

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8. Modes of Existence / A. Relations / 4. Formal Relations / c. Ancestral relation

10032

'Ancestral' relations are derived by iterating back from a given relation [Frege, by George/Velleman]

8. Modes of Existence / B. Properties / 1. Nature of Properties

10606

Frege treats properties as a kind of function, and maybe a property is its characteristic function [Frege, by Smith,P]