- No nation is uncivilised.
Taking "crocodiles" as Universe; x="hungry"; and y="amiable";
- All hungry crocodiles are unamiable.
- No crocodiles are amiable when hungry.
- Some crocodiles, when not hungry, are amiable; but some are not.
- No crocodiles are amiable, and some are hungry.
- All crocodiles, when not hungry, are amiable; and all unamiable crocodiles are hungry.
- Some hungry crocodiles are amiable, and some that are not hungry are unamiable.
[See pp. 63, 4]
- Smaller Diagram.
Symbols to be interpreted.
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| | |
| x |
|--y--|--y'-|
| x' |
| | |
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------- -------
| | | | | |
1. |---|---| 2. |---|---|
| 1 | | | | 0 |
------- -------