Proving a negative
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Proving a negative or negative proof may refer to:
- Evidence of absence in general, such as evidence that there is no milk in a certain bowl
- Modus tollens, a logical proof
- Proof of impossibility, mathematics
- Russell's teapot, an analogy: inability to disprove does not prove
- Sometimes it is mistaken for an argument from ignorance, which is non-proof and a logical fallacy
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