| 1: | from(X) | → cons(X,n__from(s(X))) | |
| 2: | length(n__nil) | → 0 | |
| 3: | length(n__cons(X,Y)) | → s(length1(activate(Y))) | |
| 4: | length1(X) | → length(activate(X)) | |
| 5: | from(X) | → n__from(X) | |
| 6: | nil | → n__nil | |
| 7: | cons(X1,X2) | → n__cons(X1,X2) | |
| 8: | activate(n__from(X)) | → from(X) | |
| 9: | activate(n__nil) | → nil | |
| 10: | activate(n__cons(X1,X2)) | → cons(X1,X2) | |
| 11: | activate(X) | → X | |
| 12: | FROM(X) | → CONS(X,n__from(s(X))) | |
| 13: | LENGTH(n__cons(X,Y)) | → LENGTH1(activate(Y)) | |
| 14: | LENGTH(n__cons(X,Y)) | → ACTIVATE(Y) | |
| 15: | LENGTH1(X) | → LENGTH(activate(X)) | |
| 16: | LENGTH1(X) | → ACTIVATE(X) | |
| 17: | ACTIVATE(n__from(X)) | → FROM(X) | |
| 18: | ACTIVATE(n__nil) | → NIL | |
| 19: | ACTIVATE(n__cons(X1,X2)) | → CONS(X1,X2) | |