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Proof step 39 from proof fits-put-03 (previous step)

st[r -- sk] = refval(r0), is_bytevalue(st[r1 -- fs ']), fits(r0, sks0, st), is_obj(str, r, st) ∨ is_array(str, r, st), r ≠ r1 ∨ sk ≠ fs ', is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval, is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), (st[r1 -- fs ', byteval(by)][r0 -- sks0]) = st[r0 -- sks0] ∨ junkref(str, r0, st) ⊦ sks0 = [], r = jvmref, (st[r1 -- fs ', byteval(by)][(st[r1 -- fs ', byteval(by)][r -- sk]) .refval -- sks0]) = st[r0 -- sks0], junkref(str, r, st)

User applied rule case distinction

And obtained the following new goals

Rule argument

[CASEDARG : pos: left 4, ()]

Additional information

[[CONCRETESIMPRULES : ()]]