1. Let zero be composed of the multiplicative property of 0 2. Let zero be composed of the multiplicative identity property of 1.
Let the use of the first property be denoted by z1 in an expression Let the use of the second property be denoted by z2 in an expression Let only one property be used in any binary expression of multiplication and division only.
( A * 0 )
if A = 0 (z1for0) * 0 = 0 (z2for0) * 0 = 0
if A =/= 0 A * (z1for0) = 0 A * (z2for0) = A
Let numerators of zero always use the property of z1 Let divisors of zero always use the property of z2 If both numbers in a binary expression of division equal 0 then only the property of z1 is used.