All whole numbers are integers.
Step 1: Write the set of integers.
\( \ldots,\,-3,\,-2,\,-1,\,0,\,1,\,2,\,3,\,\ldots \)
Step 2: Write the set of whole numbers.
\( 0,\,1,\,2,\,3,\,\ldots \)
Step 3: Compare the two sets.
Every whole number appears in the list of integers.
Step 4: Use subset notation.
\( \{0,1,2,3,\ldots\} \subset \mathbb{Z} \)
Conclusion: All whole numbers are integers, so the statement is true.