# 3 Sets

Discrete Mathematics Level 2

Three sets, $$\mathbb A$$, $$\mathbb B$$ and $$\mathbb C$$, have 3, 12, and 13 elements respectively. The set $$\mathbb D$$ is defined as:

$\mathbb D = \{(x,y,z) \mid x \in\mathbb A, y \in\mathbb B, z \in\mathbb C\}$

How many elements does $$\mathbb D$$ have?

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