| 32768 ≤ i, 0 < i, 0 ≤ i ⊦ s2i(i2s(i)) = s2i(i2s(i - 65536)) |
⊦ 0 ≤ i ∧ 32767 < i % 65536 → s2i(i2s(i)) = i % 65536 - 65536
¬(0 ≤ i ∧ 32767 < i % 65536), 32768 ≤ i, 0 < i, 0 ≤ i ⊦ s2i(i2s(i)) = s2i(i2s(i - 65536))
0 ≤ i ∧ 32767 < i % 65536, 32768 ≤ i, 0 < i, 0 ≤ i ⊦ i % 65536 - 65536 = s2i(i2s(i - 65536))
Used terms: i