Law of Composition

Law of Composition

Rule that defines an operation.

Synonym of operation on a set E, when E is closed under the operation.


  • Addition on the set of natural numbers is an internal composition law in \(mathbb{N}\).
  • Division on the set of integers is not an internal composition law in \(mathbb{N}\) since the results obtained are not all elements of \(mathbb{N}\).

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