| n1 ≤ n, m * n = n1 + m, 2 * m = m0 + 1, reachable-n(H, n, r2, r2), reachable-n(H, n + m, r, r2), reachable-n(H, n1 + m, r, r1), reachable-n(H, m, r, r2), ∀ n0. reachable-n(H, m + n0 * n, r, r2) ⊦ reachable-n(H, n1, r2, r1), n = 0, m = 0, reachable-n(H, 2 * (n1 + m), r, r1) |
n = m1 +1, n1 ≤ n, m * n = n1 + m, 2 * m = m0 + 1, reachable-n(H, n, r2, r2), reachable-n(H, n + m, r, r2), reachable-n(H, n1 + m, r, r1), reachable-n(H, m, r, r2), ∀ n0. reachable-n(H, m + n0 * n, r, r2) ⊦ reachable-n(H, n1, r2, r1), n = 0, m = 0, reachable-n(H, 2 * (n1 + m), r, r1)
[[CONCRETESIMPRULES : ([CSIMPGEN : nat generated by 0, +1;])]]