| ¬ sk ∈ fis, ∀ r, fis, class, st. update(r, fis, addobj(r, class, fis1, st)) = addobj(r, class, fis + fis1, st) ⊦ (update(r, fis, addobj(r, class, fis1, st))[r -- sk, val]) = addobj(r, class, fis + (sk × val) ' + fis1, st) |
∀ r, fis, class, st. update(r, fis, addobj(r, class, fis1, st)) = addobj(r, class, fis + fis1, st) ⊦ (update(r, fis, addobj(r, class, fis1, st))[r -- sk, val]) = addobj(r, class, fis + (sk × val) ' + fis1, st), sk ∈ fis
[[CONCRETESIMPRULES : ()]]