Cartesian Product

This lecture introduces the concept of the Cartesian product, which is a set that contains all possible ordered pairs of elements from two sets. The instructor explains the importance of the order of elements in a pair and provides examples to illustrate the concept. The lecture covers the definition of the Cartesian product for multiple sets and discusses relations as subsets of the Cartesian product. Various examples and general definitions are presented to deepen the understanding of this fundamental concept in set theory.