Rule: Interchange subject and predicate.
E. “No perfect beings are men.”
Process: Contraversion.
Rule: Obvert and then convert.
I. “Some not-men are perfect beings.”
(7b) Treat in a manner similar to the above the proposition, “All horses are quadrupeds.”
8. REVIEW QUESTIONS.
(1) What is inference?
(2) What is the meaning of antecedent?
(3) Define (1) judging, (2) a judgment.