KnowraProof by contradictionLinked fromLinked fromThe 22 pages that link to Proof by contradiction, each with the reason it gives.All 22Broader topic 3Related 9Narrower topic 3Compared with 7Mathematical proofBroader topic: It establishes the claim by showing its negation cannot hold.ContradictionBroader topic: It uses contradiction as evidence that an assumption must be rejected.Reductio ad absurdumBroader topic: This is the standard mathematical form of reductio ad absurdum.