Chapter R - Section R.1 - Basic Concepts - R.1 Exercises - Page 9: 8

$p=\{ ...,-2,-1,0,1,2 \}$

Integers are the negative, zero, and positive numbers which include $\{...,-3,-2,-1,0,1,2,3...\}$. Hence, the integers, $p$, less than $3$ are \begin{array}{l}\require{cancel} p=\{ ...,-2,-1,0,1,2 \} .\end{array}