(5) If there were no void, all would be solid.
(6) Not to go on is sometimes to go back.
2. Express in a single proposition—
If he was divine, he was not covetous; and if he was covetous, he
was not divine.
3. Exhibit the exact logical relation to one another of the following pairs of propositions—
(1) If the conclusion be false, the premisses are false. If the conclusion be true, the premisses are not necessarily true.
(2) If one premiss be negative, the conclusion must be negative.
If the conclusion be negative, one of the premisses must be negative.
(3) The truth of the universal involves the truth of the particular.
The falsity of the particular involves the falsity of the universal.