## Prove that every group of order 4 is abelian

In this article, we will prove that every group of order 4 is an abelian group. Basic Terminologies Group: A binary operation is a group if It is closed. Associative. Existence of an identity element. Each element has a unique inverse. Abelian Group: A group that is commutative is knows as abelian group, i.e., a*b …