# Set Intersection/Examples/3 Arbitrarily Chosen Sets

 $\ds A_1$ $=$ $\ds \set {1, 2, 3, 4}$ $\ds A_2$ $=$ $\ds \set {1, 2, 5}$ $\ds A_3$ $=$ $\ds \set {2, 4, 6, 8, 12}$
$A_1 \cap A_2 \cap A_3 = \set 2$