Standard Categorical Syllogism  A three part argument in which each statement relates categories to one another by means of required form.  Required categorical form consists of explicit use of quantifiers, the copula, categorization throughout (i.e., naming a category), and negation expressed by no preceding the subject term or not following the copula.  Standardization of syllogism includes proper statement position coming down the argument (1st, 2nd, 3rd positions).  A standard categorical syllogism will thus have required AIEO form and proper statement position.  Mood is based on proper statement position.