1.3.4 Subsets and Supersets
Previously, we explored how elements can belong to a particular set, in this section, we’ll understand the relationship between different sets.
If every element in set is also in set , then is a subset of , denoted by ⊆ . Equivalently, we can also say that contains or is a superset of , denoted by ⊇ . This definition leads to the two cases discussed.
