The Integer Hunt

If 'a' and 'b' are any two integers, then a - b is always an integer is called

If 'a' and 'b' are integers, then a $\times$ b is also an integer is called 

If 'a' and 'b' are integers, then a $\times$ b = b $\times$ a is called

If a, b and c are integers, then $(a\times b) \times c = a \times (b \times c)$ is called 

The multiplicative identity in Integers is 

The closure property does not holds good for integers over 

If 'a' is an integer, then 0 - a =

The additive inverse of -a is 

For any integer 'a', a ÷ (-1) = 

If a, b, c are integers, and 'c' is negative then a > b ⇒