⊦ r ≠ r0 → (r ∈ addarray(r0, ty0, vals, st) ↔ r ∈ st)
⊦ r ∈ addarray(r, ty0, vals, st)
⊦ r ∈ st → r ∈ addarray(r0, ty0, vals, st)
[[CONCRETESIMPRULES : ()]]