The subsets in math are;
- Venn Diagram. The venn diagram are closed circles, name after logician Robert Venn, the used to represent relationships between sets.
- Proper Subsets.
when you've used venn diagram to find the Proper subsets, B is a proper
subset of A.If there exist an element in A does not belong to B.
- Universal Subsets.
The set that contains all elements being discussed.
PS: Venn diagram consists of two types; The UNION, And INTERSECTION :)
Thanks ! I hope it would help you :)