(1) the us has a great environment/nature. (2) if the us has a great environment/nature then the usa is a good country to live in. -- with modus ponens from (1) (2) -- (3) the usa is a good country to live in.
the us has a great environment/nature.
if the us has a great environment/nature then the usa is a good country to live in.
the usa is a good country to live in? for sure it has great health insurance, educational system, and great universities, and a lot of landscapes.