The intersection of two sets, denoted by $\cap$, includes only the elements that are present in both sets.

Given the sets:

• $\{8, 11, 13, 14\}$
• $\{11, 14, 15\}$

The common elements in both sets are $11$ and $14$.

Thus, the intersection of the two sets is: $\{11, 14\}$

Would you like more details on set operations, or do you have any questions?

Here are five related questions:

1. What is the union of $\{8, 11, 13, 14\}$ and $\{11, 14, 15\}$?
2. How do you find the difference between two sets?
3. What are the common elements between $\{2, 4, 6\}$ and $\{4, 6, 8\}$?
4. What is the result of $\{8, 11, 13, 14\} \cup \{11, 14, 15\}$?
5. Can you find the complement of a set?

Tip: When working with sets, always remember that the intersection operation narrows down the elements to only those shared by all sets involved.