👉 In mathematics, a subideal is a subset of a given set that contains all elements from the original set. In other words, it excludes some elements but includes others as well. For example, consider the set {1, 2, 3} with its usual operations on numbers. A subideal for this set would be any subset of this set that does not contain all elements of the original set (in this case, the integers). For instance, the subideal generated by the empty
