👉 In mathematics, a sectioned (or section) is a type of algebraic structure or mathematical object that can be divided into two or more parts. These are objects where each part has its own unique properties and relationships. For example, in group theory, the Klein four-group is a sectioned group, as it consists of 4 distinct subgroups, each acting on a set of 2 elements. Sectioned groups have some interesting properties that make them particularly useful in various fields such as algebra
