For the fuzzy sets A = {(x1, 0.3), (x2, 0.7), (x3, 0.4)} and B = {(x1, 0.5), (x2, 0.2), (x3, 0.5)}, the A ∩ B would be:
1
{(x1, 0.3), (x2, 0.7), (x3, 0.4)}
2
{(x1, 0.5), (x2, 0.2), (x3, 0.5)}
3
{(x1, 0.5), (x2, 0.7), (x3, 0.5)}
4
{(x1, 0.3), (x2, 0.2), (x3, 0.4)}