------- ------- | 0 | 0 | | | 1 | 13. |---|---| 14. |---|---| | | 0 | | 1 | | ------- -------
------- ------- | 1 | | | 0 | 1 | 15. |---|---| 16. |---|---| | | 0 | | 1 | 0 | ------- -------
[See pp. 65, 6]
6. Larger Diagram.
Propositions to be represented.
__________
----------- | | | | --x-- | | | | | | |--y--m--y’-| | | | | | | --x’- | | | | -----------
__________
1. No x are m.
2. Some y are m’.
3. All m are x’.
4. No m’ are y’.
5. No m are x; All y are m.
6. Some x are m; No y are m.
7. All m are x’; No m are y.
8. No x’ are m; No y’ are m’.
[See pp. 67,8]
Taking “rabbits” as Universe; m="greedy”; x="old”; and y="black”; represent
9. No old rabbits are greedy.
10. Some not-greedy rabbits are black.
11. All white rabbits are free from greediness.
12. All greedy rabbits are young.
13. No old rabbits are greedy; All black rabbits are greedy.
14. All rabbits, that are not greedy, are black; No old rabbits are free from greediness.
__________
Taking “birds” as Universe; m="that sing loud”; x="well-fed”; and y="happy”; represent
15. All well-fed birds sing loud; No birds, that sing loud, are unhappy.
16. All birds, that do not sing loud, are unhappy; No well-fed birds fail to sing loud.
__________
Taking “persons” as Universe; m="in the house”; x="John”; and y="having a tooth-ache”; represent
17. John is in the house; Everybody in the house is suffering from tooth-ache.
18. There is no one in the house but John; Nobody, out of the house, has a tooth-ache.
__________
[See pp. 68-70]
Taking “persons” as Universe; m="I”; x="that has taken a walk”; y="that feels better”; represent
19. I have been out for a walk; I feel much better.
__________
Choosing your own ‘Universe’ &c., represent
20. I sent him to bring me a kitten; He brought me a kettle by mistake.
[See pp. 70, 1]
7. Both Diagrams to be employed.
__________
----------- | | | ----------- | --x-- | | | | | | | | | | x | |--y--m--y’-| |--y--|--y’-| | | | | | | x’ | | --x’- | | | | | | | ----------- -----------
__________
N.B. In each Question, a small Diagram should be drawn, for x and y only, and marked in accordance with the given large Diagram: and then as many Propositions as possible, for x and y, should be read off from this small Diagram.