Letting $W$ stand for the set of whole numbers, I the set of integers, $I ^ { + }$the set of positive integers, and $I ^ { - }$the set of negative integers, perform the indicated operation.
-Find I - W
A) $\varnothing$
B) $W$
C) $\mathrm { I } ^ { - }$
D) I

Question

Letting $W$ stand for the set of whole numbers, I the set of integers, $I ^ { + }$the set of positive integers, and $I ^ { - }$the set of negative integers, perform the indicated operation.
-Find I - W 
A) $\varnothing$
B) $W$
C) $\mathrm { I } ^ { - }$
D) I

Quizplus · Accepted Answer

The set of whole numbers $W$ includes all non-negative integers (0, 1, 2, 3, ...), while the set of integers $I$ includes all positive integers, negative integers, and zero. Subtracting $W$ from $I$ removes all non-negative integers, leaving only the negative integers, which is $I^{-}$.

Letting WWW Stand for the Set of Whole Numbers, I the Set

Letting $W$ Stand for the Set of Whole Numbers, I the Set