| max(x2 + x0) = a, max(x2) < max(x2 + x1), a < max(x2 + x1), max(x2) < a, ordered≤(x0), x1 ⊑ x0, ∀ x, x3. max(x2 + x) = max(x2) ∧ ordered≤(x) ∧ x3 ⊑ x → max(x2 + x3) = max(x2) ⊦ x2 + x0 = [], x2 + x1 = [], max(x2 + x1) = a, x2 = [], max(x2 + x0) < a |
max(x2) < max(x2 + x0), max(x2 + x0) < max(x2 + x1), max(x2) < max(x2 + x1), ordered≤(x0), x1 ⊑ x0, ∀ x, x3. max(x2 + x) = max(x2) ∧ ordered≤(x) ∧ x3 ⊑ x → max(x2 + x3) = max(x2) ⊦ x2 + x1 = [], x2 + x0 = [], max(x2 + x1) = max(x2 + x0), x2 = []
Used simplifier rules: ⊦ ¬ a < a; (s)