## Thinking Mathematically (6th Edition)

The set of whole numbers contains the set of counting or natural numbers and zero. The set is: $\left\{0, 1, 2, 3, ...\right\}$. The set of integers include the set of whole numbers and their negative counterparts. The set is $\left\{..., -3, -2, -1, 0, 1, 2, 3\right\}$.