Diagram the following conditional statement and find its contrapositive: “None of the subjects I learned in school were useful for my life.”
Answer
The diagramming keyword here is “none.” To diagram a “none” statement, you put the term immediately following the word “none” in the sufficient slot. Then, you negate the other term and put that negated term in the necessary slot. So here, the sufficient condition is “subjects I learned in school.” The necessary condition is “NOT useful for my life.”