what are the total number of non empty subsets of {1,2,3,4,} and what are they - Maths - Sets

Question

what are the total number of non empty subsets of {1,2,3,4,} and
what are they?

Pronay · Accepted Answer

Non empty subsets of {1,2,3,4} are
{1},{2},{3},{4},{1,2},{1,3),{1,4},{2,3},{2,4},{3,4},{1,2,3},{1,3,4},{2,3,4},{1,2,4},{1,2,3,4}
Therefore total number of subsets are 15

what are the total number of non empty subsets of {1,2,3,4,} and what are they?