| i % 10 = 0 ∧ i0 ≠ 0 ∧ i ≠ 0, mkDecimal(i / 10, abs(i0) - 1).int % 10 = 0, i % 10 = 0, ∀ i1, i0. i→n(i1) < i→n(i) → mkDecimal(i1, i0).int % 10 = 0 → mkDecimal(i1, i0).scale = 0 ⊦ i0 = 0, i = 0, mkDecimal(i, i0).scale = 0 |
i % 10 = 0, mkDecimal(i / 10, abs(i0) - 1).int % 10 = 0, ∀ i1, i0. i→n(i1) < i→n(i) → mkDecimal(i1, i0).int % 10 = 0 → mkDecimal(i1, i0).scale = 0 ⊦ i0 = 0, i = 0, mkDecimal(i, i0).scale = 0