I. All college men should study argumentation.
II. Paul Morton is a college man.
III. Paul Morton should study argumentation.
From the diagrams on the following page it is seen that in the major premise the middle term must be wholly included within the major term. The entire class of college men must be included within the class of those who should study argumentation. Not one single college man must be left outside the class. In the minor premise the minor term must be clearly and unmistakably included within the middle term. Paul Morton must be a college man. He must not be a banker or a janitor. In the conclusion the minor term must be included within the major term. This position inevitably results from the two preceding situations. If the middle term, college men, is wholly included within the major term, those who should study argumentation, and if the minor term, Paul Morton, is wholly included within the middle term, college men, then it cannot be otherwise than that the minor term is included within the major term. In other words, Paul Morton is definitely assigned to the class of those who should study argumentation.
I MAJOR PREMISE
II MINOR PREMISE
III CONCLUSION