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.

All vain people are image conscious
Some celebrities are not image conscious
Therefore, some celebrities are not vain people
Valid or invalid?


Really Deep Thought

Progress, therefore, is not an accident, but a necessity... it is part of nature.
   --Herbert Spencer.


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