19. Some bald people wear wigs.
20. Those who are fully occupied never talk about their grievances.
21. No riddles interest me if they can be solved.
[pg098]
[EX2]§ 2.
Pairs of Abstract Propositions, one in terms of x and m, and the other in terms of y and m, to be represented on the same Triliteral Diagram.
1. No x are m;
No m′ are y.
2. No x′ are m′;
All m′ are y.
3. Some x′ are m;
No m are y.
4. All m are x;
All m′ are y′.
5. All m′ are x;
All m′ are y′.