circular reasoningin a sentence
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She's guilty of circular reasoning.
circular reasoning = a logical fallacy or error in reasoning when the conclusion of an argument is assumed in one of the premises
- Lilly: That's a circular argument.† (source)
- That sort of circular reasoning-the kind that left the person being grilled hung out to dry-was exactly what you aimed for in a courtroom.† (source)
- "That's a circular argument," I pointed out.† (source)