| 2^ n + m0 = 2^ m, 2^ m ≤ 2^ n, n < m ⊦ n = m, m = 0, m0 = 0 |
Used simplifier rules: le-add: ⊦ m + m0 ≤ m ↔ m0 = 0; from specification nat%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic2%c: ⊦ m + n = n + m; from specification nat-basic2