What are the symbols of sets and subsets?

In set theory, the symbol for a set is typically represented by uppercase letters, such as (A) or (B). The symbol for a subset is denoted by the symbol "⊆", meaning that every element of the subset is also an element of the larger set. If a set is a proper subset (meaning it is not equal to the larger set), the symbol "⊂" is used. Additionally, the symbol "∅" represents the empty set, which is a set that contains no elements.