0 QTRS
f(true, x, y) → f(gt(x, y), trunc(x), s(y)) trunc(0) → 0 trunc(s(0)) → 0 trunc(s(s(x))) → s(s(trunc(x))) gt(0, v) → false gt(s(u), 0) → true gt(s(u), s(v)) → gt(u, v)