(2) He can't be wrong, whose life is in the right.
(3) Sir Walter Scott was the author of Waverley.
(4) The soul that sinneth it shall die.
(5) All women are not vain.
4. Granting the falsity of the following propositions, what other propositions can be inferred by opposition to be true or false?—
(1) Some men are not mortal.
(2) Air has no weight.
(3) All actors are improper characters.
(4) None but dead languages are worth studying.
(5) Some elements are compound.