Finding least lemenet from list

Source: PROLOG str. 196 Wydawnictwo PLJ Warszawa 1991 ISBN 83-85190-63-5

Program source code: list_smallest_element.pl

min([H|[]], H).
min([H|T], Minimum) :- min(T, M1), mn(H, M1, Minimum), !.
mn(X, Y, X) :- X < Y.
mn(X, Y, Y) :- X >= Y.
 
test :- min([4, 6, 3, 2, 8], M).