Yep! Try making two overlapping circles, label A and B. Label the middle overlapping bit A^B
What is the probability that some random point I choose will be in set A^B (the tiny oval in the middle) AND in set A?
Well, set A^B is ENTIRELY within set A. So if it's in set A^B at all, it will 100% be in set A as well. We don't need to calculate that.
