#disproof__falsification__refutation  any evidence that helps to establish the falsity of something
  supertype:  evidence.situation__grounds  your basis for belief or disbelief; knowledge on which to base belief; "the evidence that smoking causes lung cancer is very compelling"
  subtype:  reductio_ad_absurdum  (reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd; or a proff of a proposition by showing that its negation leads to a contradiction
  subtype:  confutation  a conclusive refutation
  subtype:  counterexample  refutation by example

No statement uses or specializes disproof; click here to add one.