| nnf((n0 + 1) + n) ≤ nnf(n0 + n), ∀ n1. nnf(n1) < nnf(n1 + 1) ⊦ |
Used simplifier rules: a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic2%c: ⊦ m + n = n + m; from specification nat-basic2%ls-le-simp: ⊦ m < n → (n ≤ m ↔ false); from specification nat Used terms: n0 + n