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Ideas for 'works', 'works' and 'Lecture on Nominalism'

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5. Theory of Logic / E. Structures of Logic / 1. Logical Form

4730	For Aristotle, the subject-predicate structure of Greek reflected a substance-accident structure of reality [Aristotle, by O'Grady]
	Full Idea: Aristotle apparently believed that the subject-predicate structure of Greek reflected the substance-accident nature of reality.
	From: report of Aristotle (works [c.330 BCE]) by Paul O'Grady - Relativism Ch.4
	A reaction: We need not assume that Aristotle is wrong. It is a chicken-and-egg. There is something obvious about subject-predicate language, if one assumes that unified objects are part of nature, and not just conventional.

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

21698	All relations, apart from ancestrals, can be reduced to simpler logic [Quine]
	Full Idea: Much of the theory of relations can be developed as a virtual theory, in which we seem to talk of relations, but can explain our notation in terms {finally] of just the logic of truth-functions, quantification and identity. The exception is ancestrals.
	From: Willard Quine (Lecture on Nominalism [1946], §8)
	A reaction: The irreducibility of ancestrals is offered as a reason for treating sets as universals.