Some m are x;
All y are m′.


∴ Some x are y′.

i.e. Some rich persons are not Esquimaux.

8. Sugar-plums are sweet;
Some sweet things are liked by children.

Univ. is “things”; m = sweet; x = sugar-plums; y = things that are liked by children.


All x are m;
Some m are y.

There is no Conclusion.

9. John is in the house;
Everybody in the house is ill.

Univ. is “persons”; m = persons in the house; x = the Class of Johns; y = ill.


All x are m;
All m are y.


∴ All x are y.

i.e. John is ill.