A fortiori

Latin term meaning "with stronger reason." An inference thatbecause a certain conclusion or fact is true, then the same reasoning makes iteven more certain that a second conclusion is true. For example: Dan is accusedof aiding in a bank robbery in which all of the participants were over six feettall. One suspect has already been cleared by police because he is only fivefeet six inches. Since Dan is only five feet two inches, a fortiori he couldnot have participated in the robbery and will also be cleared.