👉 "Transitively" is a mathematical concept in set theory, specifically focusing on the properties of sets that are preserved under finite unions and intersections. It describes how a set can be transformed into another set by combining it with itself or adding elements from the original set. In simpler terms, "transitively" refers to a property where one operation (in this case, union) is applied to each element of another set (in this case, the original set), and then the result is repeated