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Ideas for 'fragments/reports', 'Rationale and Maxims in Study of Concepts' and 'Lectures 1930-32 (student notes)'

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8. Modes of Existence / D. Universals / 5. Universals as Concepts

18715	Using 'green' is a commitment to future usage of 'green' [Wittgenstein]
	Full Idea: If I say this is green, I must say that other things are green too. I am committed to a future usage.
	From: Ludwig Wittgenstein (Lectures 1930-32 (student notes) [1931], B VI.2)
	A reaction: This seems to suggest that the eternal verity of a universal concept is just a convention of stability in a language.