Introduction In the world of mathematics and computer science, set theory is a fundamental concept that has stood the test of time. It is a branch of mathematics that deals with the properties and operations of sets, which are collections of objects. The origins of set theory can be traced back to the 19th century, when German mathematician Georg Cantor first introduced the concept of infinite sets. His work sparked a revolution in mathematics, as it opened up new possibilities for understanding the properties of infinity and the nature of mathematical entities.