| ⊦ (addobj(r, class, [], st)[r0 -- i ']) = st[r0 -- i '] |
⊦ addobj(r, class1, [], st) = st[r -- _type, typeval(mkclasstype(class1))]
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ _type ≠ i '], [CSIMPSEQ : ⊦ r -- sk = r0 -- sk0 ↔ ¬ ¬ (r = r0 ∧ sk = sk0)], [CSIMPSEQ : ⊦ (st[rk0, val][rk]) = ((rk = rk0 ⊃ val; st[rk]))])]]