Category:
Definition: Asserting that contrary or contradictory statements are both true
Examples:
Proof:
The author asserts more than one proposition such that the propositions cannot all be true. In such a case, the propositions may be contradictories or they may be contraries.
Assume that one of the statements is true, and then use it as a premise to show that one of the other statements is false. (Barker: 157)