Which one of the following propositions is logically equivalent to the proposition-"Some attorneys are logicians"?

Question

Question

This question was previously asked in

UGC NET Paper 1: Held on 1st Mar 2023 Shift 2

Answer 1

Key Points

The proposition "Some attorneys are logicians" means that there exists at least one attorney who is also a logician.
This means that the set of attorneys is a subset of the set of logicians.
Therefore, some logicians must be attorneys. This is equivalent to proposition 3.
Proposition 1 is not logically equivalent because it says that there exist logicians who are not attorneys. This is not necessarily true, as it is possible that all logicians are also attorneys.
Proposition 2 is not logically equivalent because it says that some attorneys are not logicians. This is not necessarily true, as it is possible that all attorneys are also logicians.
Proposition 4 is not logically equivalent because it says that some non-logicians are not attorneys. This is not necessarily true, as it is possible that some non-logicians are also attorneys.