0 QTRS
a(lambda(x), y) → lambda(a(x, p(1, a(y, t)))) a(p(x, y), z) → p(a(x, z), a(y, z)) a(a(x, y), z) → a(x, a(y, z)) a(id, x) → x a(1, id) → 1 a(t, id) → t a(1, p(x, y)) → x a(t, p(x, y)) → y