> we can't determine if a computed result is actually a sought result or its reflection/negative That's not how I'd explain it. The 'sought result' and its ref

> we can't determine if a computed result is actually a sought result or its reflection/negative That's not how I'd explain it. The 'sought result' and its reflection are not two different things. They are the same thing, differing only in a trivial detail of orientation. The 'negative' of the result conveys exactly the same information as the result.