(mathematics, logic) The method of disproving a statement by assuming the statement is true and, with that assumption, arriving at a blatant contradiction.

(neurology) Of vision, by the Donders standards.

plural of argumentum ad verecundiam

plural of argumentum ad hominem

(informal, rare) plural of argumentum ad hominem

An individual (often a lawyer) appointed to represent the best interests of a child or incapacitated person for the purpose of a legal procedure.

(logic) A type of fallacious argument in which the attempt is made to refute a theory or belief by discrediting the person(s) who advocate that theory or belief; an ad hominem argument.

(law) A writ issued by court authority to compel the attendance of a witness at a judicial proceeding; disobedience may be punishable as a contempt of court.

The (fallacious) conclusion that the fact that Adolf Hitler had a particular idea or quality is sufficient proof that the idea is wrong or the property is bad.

plural of terminus ad quem