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 half 0 0 half s 0 0 half s s X s half X half dbl X X 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 2.2 half s s X s half X dbl s X s s dbl X activate n__first X1 X2 activate X2 activate n__terms X terms activate X activate n__first X1 X2 first activate X1 activate X2 activate n__first X1 X2 activate X1 sqr s X s add sqr X dbl X activate n__s X activate X dbl s X s dbl X activate n__terms X activate X add s X Y add X Y sqr s X dbl X activate n__s X s activate X sqr s X sqr X half s s X half X first s X cons Y Z activate Z dbl s X dbl X sqr s X add sqr X dbl X add s X Y s add X Y terms N sqr N true half s s X half X true s 1 1 1 n__first 2 0 recip 1 0 activate 1 0 dbl 1 0 dbl 1 0 terms 1 0 activate 1 0 half 1 1 0 half 1 0 n__s 1 0 sqr 1 0 0 0 0 s 1 0 first 2 0 nil 0 0 first 2 0 n__terms 1 0 cons 2 0 add 2 0 add 2 0 sqr 1 0 terms 1 0 half s s X s half X false activate n__first X1 X2 activate X1 first s X cons Y Z activate Z activate n__first X1 X2 first activate X1 activate X2 activate n__first X1 X2 activate X2 activate n__terms X activate X activate n__s X activate X true s 1 1 0 n__first 2 1 2 15923 recip 1 1 0 activate 1 1 0 dbl 1 1 20538 dbl 1 0 terms 1 0 activate 1 1 0 half 1 0 half 1 0 n__s 1 1 0 sqr 1 0 0 0 0 s 1 0 first 2 2 15922 nil 0 0 first 2 1 2 15923 n__terms 1 1 5854 cons 2 2 0 add 2 0 add 2 2 8987 sqr 1 1424 terms 1 1 5854 activate n__s X activate X activate n__s X s activate X dbl 0 0 s X n__s X first 0 X nil terms N cons recip sqr N n__terms n__s N first X1 X2 n__first X1 X2 activate n__first X1 X2 first activate X1 activate X2 activate n__terms X terms activate X dbl s X s s dbl X activate X X terms X n__terms X first s X cons Y Z cons Y n__first X activate Z activate n__s X activate X true s 1 1 1 n__first 2 1 1 recip 1 1 0 activate 1 1 1 dbl 1 33602 dbl 1 0 terms 1 0 activate 1 1 0 half 1 0 half 1 0 n__s 1 1 1 sqr 1 0 0 0 1 s 1 0 first 2 2 15922 nil 0 0 first 2 1 1 n__terms 1 38607 cons 2 2 0 add 2 0 add 2 1 2 4687 sqr 1 1424 terms 1 38608 activate n__s X s activate X s X n__s X first 0 X nil terms N cons recip sqr N n__terms n__s N first X1 X2 n__first X1 X2 activate n__first X1 X2 first activate X1 activate X2 activate n__terms X terms activate X activate X X terms X n__terms X first s X cons Y Z cons Y n__first X activate Z activate n__terms X terms activate X false terms N sqr N false sqr s X sqr X true s 1 1 1 n__first 2 1 1 recip 1 1 0 activate 1 1 35495 dbl 1 1 dbl 1 0 terms 1 0 activate 1 0 half 1 0 half 1 0 n__s 1 1 1 sqr 1 1 0 0 0 1 s 1 0 first 2 2 15922 nil 0 0 first 2 1 1 n__terms 1 1 cons 2 2 0 add 2 0 add 2 1 2 4687 sqr 1 1 terms 1 1 activate n__s X s activate X s X n__s X first 0 X nil terms N cons recip sqr N n__terms n__s N first X1 X2 n__first X1 X2 activate n__first X1 X2 first activate X1 activate X2 activate n__terms X terms activate X activate X X terms X n__terms X first s X cons Y Z cons Y n__first X activate Z sqr s X s add sqr X dbl X false sqr s X add sqr X dbl X false add s X Y add X Y true s 1 1 1 n__first 2 1 1 recip 1 1 0 activate 1 1 1 dbl 1 13485 dbl 1 0 terms 1 0 activate 1 0 half 1 0 half 1 0 n__s 1 1 1 sqr 1 0 0 0 1 s 1 0 first 2 2 15922 nil 0 0 first 2 1 1 n__terms 1 1 cons 2 2 0 add 2 1 0 add 2 1 2 41990 sqr 1 1 terms 1 1 activate n__s X s activate X s X n__s X first 0 X nil terms N cons recip sqr N n__terms n__s N first X1 X2 n__first X1 X2 activate n__first X1 X2 first activate X1 activate X2 activate n__terms X terms activate X activate X X terms X n__terms X first s X cons Y Z cons Y n__first X activate Z add s X Y s add X Y false sqr s X dbl X false dbl s X dbl X true s 1 1 1 n__first 2 1 1 recip 1 1 0 activate 1 1 1 dbl 1 1 dbl 1 1 0 terms 1 0 activate 1 0 half 1 0 half 1 0 n__s 1 1 1 sqr 1 0 0 0 1 s 1 0 first 2 2 15922 nil 0 0 first 2 1 1 n__terms 1 1 cons 2 2 0 add 2 0 add 2 1 2 1 sqr 1 1 terms 1 1 activate n__s X s activate X s X n__s X first 0 X nil terms N cons recip sqr N n__terms n__s N first X1 X2 n__first X1 X2 activate n__first X1 X2 first activate X1 activate X2 activate n__terms X terms activate X activate X X terms X n__terms X first s X cons Y Z cons Y n__first X activate Z dbl s X s s dbl X false dbl s X s dbl X false activate n__s X s activate X false NaTT certifiable-1.6