| ⊦ bor(band(s2i(sho1), bcompl(s2i(sho2))), band(bcompl(s2i(sho1)), s2i(sho2))) = s2i(i2s(bor(band(s2i(sho1), bcompl(s2i(sho2))), band(bcompl(s2i(sho1)), s2i(sho2))))), band(s2i(sho1), bcompl(s2i(sho2))) ∈short ∧ band(bcompl(s2i(sho1)), s2i(sho2)) ∈short |
⊦ i ∈short ↔ s2i(i2s(i)) = i
⊦ bor(band(s2i(sho1), bcompl(s2i(sho2))), band(bcompl(s2i(sho1)), s2i(sho2))) = s2i(i2s(bor(band(s2i(sho1), bcompl(s2i(sho2))), band(bcompl(s2i(sho1)), s2i(sho2))))), s2i(i2s(band(s2i(sho1), bcompl(s2i(sho2))))) = band(s2i(sho1), bcompl(s2i(sho2))) ∧ band(bcompl(s2i(sho1)), s2i(sho2)) ∈short
Used terms: band(s2i(sho1), bcompl(s2i(sho2)))