Which of the following statements is incorrect ?
A. Sum of two integers is also an integer.
B. For all integers a and b, a + b = b + a.
C. Difference of two integers is also an integer.
D. Subtraction of integers is commutative.
Answer:D
Which of the following statements is incorrect ?
A. Sum of two integers is also an integer. B. For all integers a and b, a + b = b + a. C. Difference of two integers is also an integer. D. Subtraction of integers is commutative.