Solution Found!
Let A and B be sets. Show that A B if and only if A B = A.
Chapter 2, Problem 6E(choose chapter or problem)
QUESTION:
Let A and B be sets. Show that A ? B if and only if A ? B = A.
Questions & Answers
QUESTION:
Let A and B be sets. Show that A ? B if and only if A ? B = A.
ANSWER:Solution: Step 1: Let A and B be sets.Assume A B means A is a set of another set B if all element of the set A are element of the set B