| ¬ band(bcompl(s2i(sho1)), bcompl(s2i(sho2))) ∈short ⊦ bcompl(band(bcompl(s2i(sho1)), bcompl(s2i(sho2)))) = s2i(i2s(bcompl(band(bcompl(s2i(sho1)), bcompl(s2i(sho2)))))) |
⊦ bcompl(band(bcompl(s2i(sho1)), bcompl(s2i(sho2)))) = s2i(i2s(bcompl(band(bcompl(s2i(sho1)), bcompl(s2i(sho2)))))), band(bcompl(s2i(sho1)), bcompl(s2i(sho2))) ∈short