> Is every program with variables a "fuzzy logic" program? No. The point is not that a variable can take many distinct values, it's that it may have multiple v

> Is every program with variables a "fuzzy logic" program? No. The point is not that a variable can take many distinct values, it's that it may have multiple values with differing degrees of membership. "John's height is 178cm" is a crisp statement. It comes from a crisply measurable domain, being length. I can verify if it's true or false, to a given level of precision. "John is medium tall height" is not a crisp statement. It represents that John is partly "medium" and partly "tall", at the same time.