| m * n2 = n3, m * n1 = dist(n0, m0), m0 = n3 + n, n ≤ m0 ⊦ m | dist(n, n0) |
m * n1 = dist(n0, m * n2 + n) ⊦ m | dist(n, n0)
Used simplifier rules: c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic% ⊦ m ≤ m + n; (s)