Given S={1,2,…,2014} and the relation U<V⟺min(UΔV)∈U, where UΔV=(U∖V)∪(V∖U).
Let us test the extreme subsets of S:
Check U=S (the entire set):
For any other subset V=S, the symmetric difference is:
SΔV=S∖V Since S∖V⊆S, its minimum element must belong to S. Therefore, min(SΔV)∈S, which means S<V for all V=S.
Hence, S is smaller than every other subset. This makes statement S2 TRUE.
Check V=∅ (the empty set):
For any non-empty subset U=∅, the symmetric difference is:
UΔ∅=U The minimum element min(U) belongs to U. Thus, U<∅ for all U=∅, which means ∅>U for all U=∅.
Hence, ∅ is larger than every other subset. This makes statement S1 TRUE.
Since both S1 and S2 are true, option (A) is correct.