Learn about the concept of closure in mathematics, which refers to the property of a subset of a set being closed under some operations. Find examples of closure in different algebraic structures, binary relations, and other fields. In group theory, the Closure Property is the most basic property of the set. When you do addition within a set, if the sum of any two elements also belongs to that set, it shows closure property under addition. Closure Property indicates that a set is closed for some binary operation which means a set is closed with respect to that operation if the operation can always be completed with elements in the set. Thus, a set is either closed or not closed with respect to a given operation. Closure is when an operation (such as adding) on members of a set (such as real numbers) always makes a member of the same set.

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