Valid or Invalid - the Questions

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 objects in flight are aerodynamic
Some kites are not objects in flight
Therefore, some kites are aerodynamic

Valid or invalid?

Really Deep Thought

The liberty of the individual must be thus far limited; he must not make himself a nuisance to other people.
--John Stuart Mill.