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Ideas for 'Mahaprajnaparamitashastra', 'Causal Explanation' and 'works'

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

11022	Gentzen introduced a natural deduction calculus (NK) in 1934 [Gentzen, by Read]
	Full Idea: Gentzen introduced a natural deduction calculus (NK) in 1934.
	From: report of Gerhard Gentzen (works [1938]) by Stephen Read - Thinking About Logic Ch.8