How to Prove Two Sets Are Equal | Double Subset Method with 2 Examples

In this video, we walk through how to prove that two sets are equal using the double inclusion method — showing that each set is a subset of the other. We explore two clear examples to help you grasp this core proof technique in set theory: Example 1: A property of sets — how intersection distributes over union Example 2: Proving the image (or range) of a function 0:00 - Introduction 1:18 - Example 1 6:57 - Example 2 15:11 - Conclusion