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Ideas for 'works', 'What Required for Foundation for Maths?' and 'Mathematical Intuition'

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2. Reason / E. Argument / 6. Conclusive Proof

17773	Proof shows that it is true, but also why it must be true [Mayberry]
	Full Idea: When you have proved something you know not only that it is true, but why it must be true.
	From: John Mayberry (What Required for Foundation for Maths? [1994], p.405-2)
	A reaction: Note the word 'must'. Presumably both the grounding and the necessitation of the truth are revealed.