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Ideas for 'Parmenides', 'Thought' and 'An Outline of Empiricism'

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5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens

3094	You don't have to accept the conclusion of a valid argument [Harman]
	Full Idea: We may say "From P and If-P-then-Q, infer Q" (modus ponens), but there is no rule of acceptance to say that we should accept Q. Maybe we should stop believing P or If-P-then-Q rather than believe Q.
	From: Gilbert Harman (Thought [1973], 10.1)