If a man is a citizen of the United States, then he was
born in the United States. Sam was not born in the
United States. Therefore Sam isn’t a citizen of the
United States?
Not necessarily. There are other ways to become a citizen, or to be born a citizen. The first ststement is not correct; no fact can be deduced from false statement.
Other ways to be be a citizen without being born here:
(1) become naturalized
(2) be the child of at least one American citizen parent, although born outside the country.
(3) Be born in Puerto Rico or Guam
Drwls is, of course, correct in the various ways of becoming a citizen.
I interpret your question differently. Your initial statement is wrong. However, if it were correct, then your argument would be true.
According to the given statement, if a person is a citizen of the United States, then they were born in the United States. The information also states that Sam was not born in the United States.
To determine whether Sam is a citizen of the United States or not, we can use the method of logical deduction.
Since the statement implies that citizenship in the United States requires being born in the United States, we can conclude that if someone was not born in the United States, they cannot be a citizen of the United States.
Therefore, based on the information provided, we can conclude that Sam is not a citizen of the United States.