Valid or Invalid? - The Syllogisms
Syllogism 1 of 15
Remember, we're interested only in whether the argument is valid; that is, whether the conclusion follows as a matter of necessity given the truth of the premises. Just select "Valid" or "Invalid" from the drop-down list below, then press Next.
Some students are sleep deprived
No narcoleptics are sleep deprived
Therefore, some narcoleptics are not students
Valid or invalid?