Good thinking points, but: Op 19-12-2021 om 01:44 schreef Darren Duncan: > My position is that it is N-valued logic and its arbitrary count of > logical dimensions that is the largest problem here. In general its > complexity is exponential, doubling with each new dimension, as each > one needs to specifically define its interactions with the others. > For example, what does "unknown value" plus "unauthorized" return? > ... > > So rather than treating a singleton unknown as special, the 3-valued > logic would treat any instance of Excuse as special, but each reason > does NOT add a logic dimension, rather it is just further information > "if you want to know". > So what does Excuse("unknown value") plus Excude("unauthorized) return? You just reintroduced the same problem that made you decide against NVL, unless I'm missing something. HTH, M4Thread Previous | Thread Next