| (m + n) / 2 - 1 < n, m < n, (m + n) / 2 - 1 < m, m + 1 < n, ((m + n) / 2 - 1) + 1 < n ⊦ m + 1 = n |
n ≠ 0 ⊦ m0 = m / n ∧ n0 = m % n ↔ m = m0 * n + n0 ∧ n0 < n
m + n = m0 * 2 + n0 ∧ n0 < 2 ∧ 2 ≠ 0, m0 - 1 < n, m < n, m0 - 1 < m, m + 1 < n, (m0 - 1) + 1 < n ⊦ m + 1 = n
Used terms: m + n, 2, m0, n0