| ⊦ ¬ sk ∈ fis ∧ sk ≠ _type → (addobj(r, class1, fis, st)[r -- sk, val]) = addobj(r, class1, fis, st[r -- sk, val]) |
⊦ sk = _type, (addobj(r, class1, fis, st)[r -- sk, val]) = addobj(r, class1, fis, st[r -- sk, val]), sk ∈ fis
[[CONCRETESIMPRULES : ()]]