| n % 2 = 1, partial-sorted(x, 1, n) ⊦ x[n + 1] < x[n], partial-sorted(x, 1, n + 2) |
n % 2 = 1, 2 * n0 < n, x[2 + 2 * n0] < x[1 + 2 * n0], ∀ n0. 2 + 2 * n0 < n → ¬ x[2 + 2 * n0] < x[1 + 2 * n0] ⊦ x[n + 1] < x[n]
Used simplifier rules: partial-sorted: ⊦ partial-sorted(x, n, m) ↔ (∀ n0. n + 2 * n0 + 1 < m → ¬ x[n + 2 * n0 + 1] < x[n + 2 * n0]);% ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic% ⊦ m + n < m + n0 ↔ n < n0; (s)%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic