Question

If x is a positive integer and y is a positive integer, then x - y is always a positive integer.

Answer 1

This statement isn't always true.


Let's look at a case in which it is true.

10 - 5 = ?

I think you'll agree that it equals 5, but if we did...

5 - 10 = ?

The answer would be -5


Do you understand? Based on what I said, is this statement true or false?

Answer 2

Both x and y are positive but the result `won't always be positive`