👉 In mathematics, a subtrunk of a set is a subset that contains only elements that are in one or more of the original elements. For example, if we have a set A = {a, b, c} and we define a subtrunk as containing only the element "c", then our set would be represented by the set B = {b}. This is because any other element from the original set would not be in the subset of "c".
