Write down all the subsets of the following sets: (i) {1, 2, 3} (ii) Φ

Solution:

(i) Subsets of {1, 2, 3} are

Φ, {1}, {2}, {3}, {1, 2}, {2, 3}, {1, 3}, and {1, 2, 3}.

(ii) Only subset of Φ is Φ.