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Ideas for 'fragments/reports', 'The Logic of Infinity' and 'On Assertion and Indicative Conditionals'

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6. Mathematics / C. Sources of Mathematics / 10. Constructivism / d. Predicativism

18203	Avoid non-predicative classifications and definitions [Poincaré]
	Full Idea: Never consider any objects but those capable of being defined in a finite number of word ...Avoid non-predicative classifications and definitions.
	From: Henri Poincaré (The Logic of Infinity [1909], p.63), quoted by Penelope Maddy - Naturalism in Mathematics II.4