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Ideas for 'Mahaprajnaparamitashastra', 'A Powers Theory of Modality' and 'Tractatus Logico-Philosophicus'

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5. Theory of Logic / B. Logical Consequence / 3. Deductive Consequence |-

18277	If q implies p, that is justified by q and p, not by some 'laws' of inference [Wittgenstein]
	Full Idea: If p follows from q, I can make an inference from q to p, deduce p from q. The nature of the inference can be gathered only from the two propositions. They are the only possible justification of the inference. 'Laws of Inference' would be superfluous.
	From: Ludwig Wittgenstein (Tractatus Logico-Philosophicus [1921], 5.132)
	A reaction: That seems to imply that each inference is judged on its particulars. But logic aims to be general. There seem to be 'laws' at a more complex level in the logic.