| ¬ max(x0) < a0, max(x0) < a, a ∈ x0, ∀ a1. ¬ a1 ∈ x0 ∨ ¬ max(x0) < a1 ⊦ a = a0, x0 = [] |
max(x0) < a, a ∈ x0, a0 < a, ∀ a1. ¬ a1 ∈ x0 ∨ ¬ max(x0) < a1 ⊦ x0 = [], max(x0) < a0
Used simplifier rules: nll: ⊦ ¬ b < a ∧ b < c → a < c; (forward) from specification oelem