 In general, for this type of premises, the classification of arguments rests on the following criteria: which premise—major or minor—is conditional and which is disjunctive; whether the shared part (here always a  proposition)  is the antecedent or the consequent of the conditional;[18] whether the disjunction is real or not; whether the parts of the disjunction are affirmative or negative; and whether the conditional is an implication or  not.[19]