John: You told me once that no United States citizen who supports union labor should buy an imported car  Yet you are buying an Alma  Since Alma is one of the biggest makers of imports, I infer that you no longer support unions  Harry: I still support labor unions
Even though Alma is a foreign car company, the car I am buying, the Alma Deluxe, is designed, engineered, and manufactured in the United States
show that John's argument involves a false unstated assumption