| ⊦ ¬ junkref(str, r, st) ∧ is_bytevalue(st[r1 -- fs ']) ∧ fits(r, sks, st[r1 -- fs ', byteval(by)]) → fits(r, sks, st) |
fits(r, sks, st[r1 -- fs ', byteval(by)]), is_bytevalue(st[r1 -- fs ']) ⊦ junkref(str, r, st), fits(r, sks, st)
[[CONCRETESIMPRULES : ()]]