Question

Difference between non-proper subset and equal set

Answer 1

That is the main difference. A Subset is a set which contains all the elements of another set. ... But, In two sets A and B, B is a proper subset of A, if all the elements of B are in A, but A contains at least one element that is not in B. For example, if A ={a,b,c} then B={a,c} is a proper subset of A.