Example how to divide two lists, in first there are elements lesser then set value
Source: PROLOG str. 46 Wydawnictwo PLJ Warszawa 1991 ISBN 83-85190-63-5
Program source code: list_divide.pl
dziel(D, [G|O], [G|L1], L2) :- G < D, dziel(D, O, L1, L2). dziel(D, [G|O], L1, [G|L2]) :- G > D, dziel(D, O, L1, L2). dziel(_, [], [], []). test :- dziel(7, [1, 9, 4, 2, 12], L1, L2).