Law of Composition
Rule that defines an operation.
Synonym of operation on a set E, when E is closed under the operation.
Examples
- Addition on the set of natural numbers is an internal composition law in [latex]mathbb{N}[/latex].
- Division on the set of integers is not an internal composition law in [latex]mathbb{N}[/latex] since the results obtained are not all elements of [latex]mathbb{N}[/latex].