1. Interchanging two rows or two columns affects the determinant by multiplying it by −1.

2. Protective eyewear device with lateral eye access and quick release mechanism for interchanging lenses

3. These adaptor interfaces (28, 44) provide for a method of interchanging one workpiece retaining member quickly and efficiently for a different workpiece retaining member.

4. The Contrapositive of a Conditional Statement Suppose you have the conditional statement {\color {blue}p} \to {\color {red}q} p → q, we compose the Contrapositive statement by interchanging the hypothesis and conclusion of the inverse of the same conditional statement.

5. Definition of Contrapositive : a proposition or theorem formed by contradicting both the subject and predicate or both the hypothesis and conclusion of a given proposition or theorem and interchanging them "if not-B then not-A " is the Contrapositive of "if A then B " First Known Use of Contrapositive 1870, in the meaning defined above