Premise: Then what is your explanation of Mr. Mace's statement? Alfred Inglethorp replied imperturbably: "Mr. Mace must have been mistaken." The Coroner hesitated for a moment, and then said: "Mr. Inglethorp, as a mere matter of form, would you mind telling us where you were on the evening of Monday, July 16th?"

Hypothesis: Mr. Mace was absolutely correct.
Relation: contradiction