Reasoning - Logical Deduction - Discussion

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Q.

statements:
All men are dogs. All dogs are cats.
Conclusions:
I.All men are cats.
II.All cats are men.
                        
A. Only conclusion I follows B. Only conclusion II follows
C. Either I or II follows D. Neither I nor II follows

Answer: Option A
Explaination:

 


Since both the premises are universal and affirmative, the conclusion must be universal affirmative. However, conclusion II, being an A-type proposition, distributes the term 'cats'.
Since the term 'cats' is distributed in II without being distributed in any of the premises, so conclusion II cannot follow. Thus, only I follows.




Discussion

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