| m + n = m0 * 2 + n0, m + 1 < m0, m < n, n < m0, m < m0, n0 < 2 ⊦ 2 = 0 |
m + n = m0 * 2 + n0, m < m0, m < n, n < m0, n0 < 2, m + 1 < m0 ⊦
Used simplifier rules: ⊦ m +1 = m + 1; (s)% ⊦ m < n → n ≠ 0; (s)%trans: ⊦ n < n0 ∧ n0 < n1 → n < n1; (forward) from specification nat-basic%lf: ⊦ m < n ∧ n < n0 → m +1 < n0; (forward) from specification nat-basic%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic