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