Negative result
Encyclopedia
A negative result may refer to:
  • Proof of impossibility
    Proof of impossibility
    A proof of impossibility, sometimes called a negative proof or negative result, is a proof demonstrating that a particular problem cannot be solved, or cannot be solved in general. Often proofs of impossibility have put to rest decades or centuries of work attempting to find a solution...

    , a proof that a particular problem cannot be solved.
  • Null result
    Null result
    In science, a null result is a result without the expected content: that is, the proposed result is absent. It is an experimental outcome which does not show an otherwise expected effect. This does not imply a result of zero or nothing, simply a result that does not support the hypothesis...

    , a result which shows no evidence of the intended effect.
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