So, essentially the transreal numbers treat NaN as a "value"? "The main difference between transreal arithmetic and IEEE floating-point arithmetic is thus that

So, essentially the transreal numbers treat NaN as a "value"? "The main difference between transreal arithmetic and IEEE floating-point arithmetic is thus that nullity compares equal to nullity, whereas NaN does not compare equal to NaN." https://en.wikipedia.org/wiki/James_A._D._W._Anderson https://en.wikipedia.org/wiki/James_A._D._W._Anderson