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The subset or equal symbol is used in math to describe the relationship between two sets. Typically, the symbol is used in an expression like this:
In plain language, this means that the set is a subset of or equal to the set .
The subset symbol is used in math to describe the relationship between two sets.
The superset symbol is used in math to express that one set is a superset of another set.
Superset or equal
The subset operator is denoted using a U shapes symbol rotated ninety degrees to the righ with a horizontal line underneath.