A set is a commonly used mathematical concept that represents a collection of distinct objects or elements. It is characterized by its defining property of uniqueness, meaning that each member of a set is distinct and occurs only once within that set. Sets can contain any type of objects, such as numbers, letters, or even other sets. The elements of a set are enclosed within braces {} and are separated by commas. Sets can be finite or infinite, depending on whether the number of elements in the set is limited or goes on forever. Set theory, a branch of mathematical logic, provides the foundation for formally studying the properties, operations, and relationships among sets.

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