Combining Texts

Ideas for 'On the Question of Absolute Undecidability', 'Letters to Antoine Arnauld' and 'The Evolution of Logic'

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2 ideas

7. Existence / C. Structure of Existence / 5. Supervenience / a. Nature of supervenience

12922	A thing 'expresses' another if they have a constant and fixed relationship [Leibniz]
	Full Idea: One thing 'expresses' another (in my terminology) when there exists a constant and fixed relationship between what can be said of one and of the other. This is the way that a perspectival projection expresses its ground-plan.
	From: Gottfried Leibniz (Letters to Antoine Arnauld [1686], 1687.10.09)
	A reaction: Arnauld was puzzled by what Leibniz might mean by 'express', and it occurs to me that Leibniz was fishing for the modern concept of 'supervenience'. It also sounds a bit like the idea of 'covariance' between mind and world. Maybe he means 'function'.

7. Existence / C. Structure of Existence / 8. Stuff / a. Pure stuff

13488	Mass words do not have plurals, or numerical adjectives, or use 'fewer' [Hart,WD]
	Full Idea: Jespersen calls a noun a mass word when it has no plural, does not take numerical adjectives, and does not take 'fewer'.
	From: William D. Hart (The Evolution of Logic [2010], 3)
	A reaction: Jespersen was a great linguistics expert.