Dinosaur Meme

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?


Really Deep Thought

If chance is defined as an event produced by random motion without any causal nexus, I would say that there is no such thing as chance.
   --Boethius.


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