| mkDecimal(3 * i, abs(i0)).int = mkDecimal(1, 0).int ∧ mkDecimal(3 * i, abs(i0)).scale = mkDecimal(1, 0).scale, ∀ i1, i0. i→n(i1) < i→n(i) → mkDecimal(3 * i1, abs(i0)) = mkDecimal(1, 0) → false ⊦ (3 * i) % 10 = 0, i0 = 0 |
mkDecimal(3 * i, abs(i0)).scale = mkDecimal(1, 0).scale, mkDecimal(3 * i, abs(i0)).int = mkDecimal(1, 0).int, ∀ i1, i0. i→n(i1) < i→n(i) → mkDecimal(3 * i1, abs(i0)) = mkDecimal(1, 0) → false ⊦ i0 = 0, (3 * i) % 10 = 0