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Ideas for 'works', 'Reals by Abstraction' and 'Short History of Modern Philosophy'

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2 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

5637	Nowadays logic is seen as the science of extensions, not intensions [Scruton]
	Full Idea: Logicians have come increasingly to realise that logic is the science not of the intension, but of the extension of terms.
	From: Roger Scruton (Short History of Modern Philosophy [1981], Ch.4)
	A reaction: I take this to be because the notion of a 'set' is basic, which is defined strictly in terms of its members. This move is probably because we can be clear about extensions, but not intensions. Tidiness is no substitute for complex truth.

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.