selsumji
lujvo x_{1} is the difference x_{2} minus x_{3}; x_{1} is the amount that remains in substracting x_{3} from x_{2}. See also vu'u


vujnu
experimental gismu x_{1} is the subtractiondifference of x_{2} and x_{3} (and x_{4} etc.); x_{1} = x_{2}  x_{3} [  x_{4} etc.] Nearsynonymous to selsumji, but better conveys the concept of "subtraction", as opposed to merely "addend", as well as being more convenient for lujvo. See vu'u, sumji, pilji, dilcu, frinu. Proposed rafsi: vuj, vu'u
