Exam-style question
Try this first
Which statement about 0 is correct?.
- A.0 is not an integer
- B.0 is a negative integer
- C.0 is an integer in ℤ
- D.0 is greater than every integer
Model answer
What a good answer should say
- 0 is an integer in ℤ
Explanation
Why this works
The supplied definition of ℤ explicitly includes 0.
Common mistake
No common mistake is linked to this question yet.