| #oc(a, y) < #oc(a, x), ∀ a. #oc(a, x) ≤ #oc(a, y) ⊦ |
Used simplifier rules: fle-01: ⊦ m ≤ n ∧ n < n0 → m < n0; (forward) from specification nat%fle: ⊦ m < n ∧ n ≤ n0 → m < n0; (forward) from specification nat%ref-1: ⊦ ¬ n < n; from specification nat-basic1 Used terms: a