 Hi again! In this lesson, we're going to talk about that how to find if a set is a subset of another set. First, let's make set A with few elements. Let's say that set A has elements 1, 2, 3, 4 and 5 and let's make set B with just few elements 1, 2 and 3. Obviously, you can see that set B is a subset of set A because all elements from set B are in or are also in set A, but set A is bigger. It has more elements than set B. So set B is a subset of set A. But if you want to find that in Python programming language, you will use method is subset. And as you can see, this method reports to us whether another set contains this set. So we will check if our set B is contained maybe by another bigger set. In this case, we will provide this set A. So of course, set B is a subset of set A and after pressing enter we will get true as returning value, which tells us that set B is a subset of set A. You can check whether is some set subset of some other set by using method is subset in Python programming language. Thanks for watching.