terms N cons recip sqr N n__terms n__s N sqr 0 0 sqr s X s add sqr X dbl X dbl 0 0 dbl s X s s dbl X add 0 X X add s X Y s add X Y first 0 X nil first s X cons Y Z cons Y n__first X activate Z terms X n__terms X s X n__s X first X1 X2 n__first X1 X2 activate n__terms X terms activate X activate n__s X s activate X activate n__first X1 X2 first activate X1 activate X2 activate X X terms 1 cons 2 recip 1 sqr 1 n__terms 1 n__s 1 0 0 s 1 add 2 dbl 1 first 2 nil 0 n__first 2 activate 1 FULL ./TRS/TRCSR/Ex2_Luc02a_FR.trs