1. The problem statement, all variables and given/known data I have a Hamming function which takes two inputs, domain & co-domain and the output is how many bits are different. Example: f(11100, 11101) = 1 (only one bit is different). Is this one to one? I say no because there could be many other combinations if inputs that can produce the same answer as the output. For example f(11110, 11100) = 1 also. I just want to know if my thinking is correct or totally off base. Thanks for any feedback!