| ⊦ rk1 .ref = jvmref → (validref(str, r, ty1, st[rk1, val]) ↔ validref(str, r, ty1, st)) |
⊦ rk1 .ref = jvmref ∧ validref(str, r, ty1, st) → validref(str, r, ty1, st[rk1, val])
rk1 .ref = jvmref, validref(str, r, ty1, st[rk1, val]) ⊦ validref(str, r, ty1, st)
[[CONCRETESIMPRULES : ()]]