| i0 < ~1, 0 < j, i0 < j, j0 < j, i0 < j + j0, j0 < 0, 0 < j + j0, i0 < 0 ⊦ i0 = ~1, j * (2 + i0) + j0 ≤ 0 |
⊦ i < 0 ∧ j < 0 → ¬ 0 < i + j
i0 < 0, 0 < j + j0, j0 < 0, i0 < j + j0, j0 < j, i0 < j, 0 < j, i0 < ~1 ⊦ i0 = ~1, j * (2 + i0) + j0 ≤ 0, j < 0 ∧ j0 < 0
Used terms: j0, j