+A **coset** is a fundamental structure in [Group theory](/wiki/group_theory), representing a special subset of a [Group](/wiki/group) formed by "shifting" a [Subgroup](/wiki/subgroup) with an element of the group. These partitions reveal the internal structure of algebraic groups.
+## See also
+- [Normal Subgroup](/wiki/normal_subgroup)
+- [Quotient Group](/wiki/quotient_group)
+- [Lagrange's Theorem](/wiki/lagranges_theorem)