Hence proposed Conclusion is right.

(2)

“I admire these pictures;
When I admire anything I wish to examine it thoroughly.
I wish to examine some of these pictures thoroughly.”

Univ. “things”; m = admired by me; x = these pictures; y = things which I wish to examine thoroughly.


“All x are m;
All m are y.
Some x are y.”


∴ “All x are y.”

Hence proposed Conclusion is incomplete, the complete one being “I wish to examine all these pictures thoroughly”.

(3)

“None but the brave deserve the fair;
Some braggarts are cowards.
Some braggarts do not deserve the fair.”

Univ. “persons”; m = brave; x = deserving of the fair; y = braggarts.


“No m′ are x;
Some y are m′.
Some y are x′.”


∴ “Some y are x′.”