Find the intersection of the following sets, namely ${-7, 3, -8, 6, -1, 4, 9, -9, -4} \cap {-5, -8, -4, 3, 4, 8, 0, 5, -1, 7}$.
Answer:
${-8, -4, -1, 3, 4}$
{'source': 'AMPS', 'file': 'amps/mathematica/counting_and_statistics/set_intersection/2162.txt'}