~32768 ≤ i, i ≤ 32767 ⊦ s2i(i2s((* i))) = i
¬(~32768 ≤ i % s2i(sho) ∧ i % s2i(sho) ≤ 32767) ⊦ s2i(sho) = 0, i % s2i(sho) = s2i(i2s(i % s2i(sho)))
Used terms: i % s2i(sho)