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A set is a collection of distinct elements grouped into a single entity. Elements can be numbers, objects, people or anything that can be uniquely identified. Sets are represented between braces {}. Some important concepts related to sets include: Membership: An element can belong to a set. If an element is present in a set, it is said to belong to that set. Empty set: It is a set that has no elements. Subset: A set is considered a subset of another set if all its elements also belong to the larger set. Union: The union of two sets is a new set that contains all the elements of the original sets, without repetitions. Intersection: The intersection of two sets is a new set that contains only the elements common to both sets.
