This question is from the book Abstract Algebra: Theory and Applications by Thomas W. Judson.
Chapter 1 – Question 5
Prove $A \cup B = B \cup A$ and $A \cap B = B \cap A$.
This question is from the book Abstract Algebra: Theory and Applications by Thomas W. Judson.
Prove $A \cup B = B \cup A$ and $A \cap B = B \cap A$.