Complete the following using , , , or : If
, then .
Step 1: Determine the elements of set .
The intersection set of and is the set of
all common elements of the two sets.
There are no numbers that are elements of both sets, so the
intersection set is the null, or empty set. Therefore, .
Step 2: Determine the relationship between set and .
The null set is a subset of all sets. Since , then .