Taking "persons" as Universe; m="in the house"; x="John"; and y="having a tooth-ache"; represent
- John is in the house; Everybody in the house is suffering from tooth-ache.
- 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
- I have been out for a walk; I feel much better.
Choosing your own 'Universe' &c., represent
- I sent him to bring me a kitten; He brought me a kettle by mistake.
[See pp. 70, 1]
- 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.