1. Rootbeer003

2. SolomonZelman

List all the values, that *every* set has.

3. SolomonZelman

For example, if I had the following three sets: $$A=\left\{0,~1,~2,~3,~4,~5,~6,~16\right\}$$ $$B=\left\{2,~3,~6,~8,~10,~16,~17\right\}$$ $$C=\left\{3,~6,~9,~12,~16,~20,~\right\}$$ If you look carefully at the sets, you will see that all three sets have the following values in common with each other: * 3, 6, 16 * So, the intersection of the sets A, B and C is: * 3, 6, 16 *

4. Rootbeer003

ohhhhhh

5. Rootbeer003

but im also wondering about the second one

6. SolomonZelman

question 5, you mean ?

7. SolomonZelman

Oh, you do the same thing, with one "but" and this "but" is as follows. Last time we dealt with numbers, and this time we deal with labels. The good news is though, that everything is really the same. *(Here is the task)* You are to list the elements that all sets have in common - again. Last time you were looking for same numbers that all sets have in common, this time *you are looking for same labels that all sets have in common*.

8. SolomonZelman

by labels, in this case I mean - the names of the athletes.