A subset can be named as a proper subset if the elements in the subset is lesser than the original set.
Example:
A = {1, 2, 3}
Subsets:
B = {3, 1, 2} - not a proper subset, it has the elements 1, 3, 2 than can be found in set A above even though they are not in order, they are just the same.
D = {1, 2} - proper subset, it has 1 and 2, which makes it a subset of a,
G = {2, 3} - proper subset
H = {1, 3}- proper subset
Q = {1} - proper subset
T = { } - proper subset
F = {2} - proper subset
E = {3} - proper subset
