antilogism: Meaning and Definition of

an•til•o•gism

Pronunciation: (an-til'u-jiz"um), [key]
— n. Logic.
  1. a group of three inconsistent propositions, two of which are premises of a syllogism that contradict the third.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.