| ⊦ okarray(val, ty, i, st[_mode, val0]) ↔ okarray(val, ty, i, st) |
⊦ refval(rk .ref) ≠ val → (okarray(val, ty, i, st[rk, val0]) ↔ okarray(val, ty, i, st))
⊦ ¬ okarray(refval(jvmref), ty, i, st)
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ _mode .ref = jvmref])], [EXTRATERMS : (val0, _mode, st, i, ty, val)]]