| reachable-n(H, n, r2, r2), reachable-n(H, n + m, r, r2), reachable-n(H, m * n, r, r1), reachable-n(H, m, r, r2), ∀ n0. reachable-n(H, m + n0 * n, r, r2) ⊦ n = 0, m = 0, reachable-n(H, 2 * m * n, r, r1) |
⊦ reachable-n(H, n, r, r) ∧ reachable-n(H, m, r, r0) → (¬ reachable-n(H, n0 * n, r0, r0) ↔ false)
reachable-n(H, n, r2, r2) ∧ reachable-n(H, m * n - m, r2, r1) → (¬ reachable-n(H, (m + m - 1) * n, r1, r1) ↔ false), reachable-n(H, n, r2, r2), reachable-n(H, n + m, r, r2), reachable-n(H, m * n, r, r1), reachable-n(H, m, r, r2), ∀ n0. reachable-n(H, m + n0 * n, r, r2) ⊦ n = 0, m = 0, reachable-n(H, 2 * m * n, r, r1)
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (H, n, r2, m * n - m, r1, m + m - 1)]]