Again: Nominal numbers have no values. So what "arithmetic" do you want to do? There is no overflow. Because there is no arithmetic with nominal numbers. The e

Again: Nominal numbers have no values. So what "arithmetic" do you want to do? There is no overflow. Because there is no arithmetic with nominal numbers. The examples you quoted above are NOT using nominal numbers. Those are ACTUAL numbers. Those are modulo operations - that is NOT "nominal numbers". Personal attacks won't help, they never do in any discussion. You should seriously consider changing your discussion style. If your question was about modular arithmetic, it confuses two different issues. It would be just a coincidence if the highest number representable with the given amount of bits happens to be the same number you want for your modulo operations. Those are only accidentally related issues.