yes, this is what i understood too, the definition of the set states that every element is equivalent (not equal though) to the number itself modulo 1. so every

yes, this is what i understood too, the definition of the set states that every element is equivalent (not equal though) to the number itself modulo 1. so every element from Z is actually equivalent to 0. and, 2+2 = 4 = 0+0 = 5 = 0