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.

Please select... Valid Invalid

Really Deep Thought

Most of what was achieved in the history of the West from the 16th century onwards... was wrested from the bitter reactionary grip of religion inch by painful and frequently bloody inch.
   --Anthony Grayling.