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2. Reason / F. Fallacies / 3. Question Begging

[taking for granted the very thing you are trying to prove]

3 ideas
Men are natural leaders (apart from the unnatural ones) [Aristotle]
'Petitio principii' is reusing the idea to be defined, in disguised words [Hobbes]
Question-begging assumes the proposition which is being challenged [PG]