False (Consider the integers and whole numbers separately.
We know that integers are those numbers that can be written in the form of p/q where p ≠ 1.
Now, considering the series of integers, we have.... - 4, - 3, - 2, -1, 0,1, 2, 3, 4..... .
We know that whole number series is 0,1, 2, 3, 4,5..... .
We can conclude that all the numbers of whole number series lie in the series of integers. But every number of series of integers does not appear in the whole number series.
Therefore, we conclude that every integer is not a whole number.