| is_referencevalue(val), okarray(val, byte_type, i, st), junkref(str, val .refval, st) ⊦ |
val = refval(r), is_referencevalue(val), okarray(val, byte_type, i, st), junkref(str, r, st) ⊦
[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_referencevalue(val) → ( r = val .refval ↔ val = refval(r))])], [EXTRATERMS : (val, r)]]