| ~1 ≤ i2, i < i0 * j + i2 * j + j, i0 * j ≤ i, 0 < i0 * j + i2 * j + j, 0 ≤ i, 0 < j, 0 ≤ i0, 0 < i2 * j + j, ∀ i1, j0, i3. i1 * j0 ≤ i3 ∧ i3 < i1 * j0 + i2 * j0 ∧ 0 ≤ i1 ∧ 0 < j0 ∧ 0 ≤ i3 ∧ 0 ≤ i2 → (∃ i4. i4 * j0 ≤ i3 ∧ i3 < i4 * j0 + j0 ∧ 0 ≤ i4) ⊦ ∃ i1. i1 * j ≤ i ∧ i < i1 * j + j ∧ 0 ≤ i1, i0 * j + i2 * j ≤ i ∧ 0 ≤ i0 + i2, i < i0 * j + i2 * j ∧ 0 ≤ i2 |
~1 ≤ i2, i < i0 * j + i2 * j + j, i0 * j ≤ i, 0 < i0 * j + i2 * j + j, 0 ≤ i, 0 < j, 0 ≤ i0, 0 < i2 * j + j, ∀ i1, j0, i3. i1 * j0 ≤ i3 ∧ i3 < i1 * j0 + i2 * j0 ∧ 0 ≤ i1 ∧ 0 < j0 ∧ 0 ≤ i3 ∧ 0 ≤ i2 → (∃ i4. i4 * j0 ≤ i3 ∧ i3 < i4 * j0 + j0 ∧ 0 ≤ i4) ⊦ i < i0 * j + i2 * j, ∃ i1. i1 * j ≤ i ∧ i < i1 * j + j ∧ 0 ≤ i1, i0 * j + i2 * j ≤ i ∧ 0 ≤ i0 + i2
~1 ≤ i2, i < i0 * j + i2 * j + j, i0 * j ≤ i, 0 < i0 * j + i2 * j + j, 0 ≤ i, 0 < j, 0 ≤ i0, 0 < i2 * j + j, ∀ i1, j0, i3. i1 * j0 ≤ i3 ∧ i3 < i1 * j0 + i2 * j0 ∧ 0 ≤ i1 ∧ 0 < j0 ∧ 0 ≤ i3 ∧ 0 ≤ i2 → (∃ i4. i4 * j0 ≤ i3 ∧ i3 < i4 * j0 + j0 ∧ 0 ≤ i4) ⊦ 0 ≤ i2, ∃ i1. i1 * j ≤ i ∧ i < i1 * j + j ∧ 0 ≤ i1, i0 * j + i2 * j ≤ i ∧ 0 ≤ i0 + i2