Question

Let A = {
a, e, i, o, u
} and B = {
a, b, c, d
}. Is A a subset of B ? No.
(Why?). Is B a subset of A? No. (Why?)

Answer 1

@ruizgeorge

Answer 2

A only has an element that is in B, then A can't be a subset of B!
B can't be a subset of A because it only has one element from A!
A set needs to have all its elements into another set to be a subset!

Answer 3

Thank you