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Proof step 30 from proof fits-put-02-stronger (previous step)

st[r -- sk] = refval(r0), fits(r0, sks0, st[r1 -- i ', byteval(by)]), okarray(r1, byte_type, st), r1 ∈ st, 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), ∀ r1, st, r, i, by, str. okarray(r1, byte_type, st) ∧ fits(r, sks0, st[r1 -- i ', byteval(by)]) ∧ r1 ∈ st → r1 = jvmref ∨ fits(r, sks0, st) ∨ junkref(str, r, st), r ≠ r1 ∨ sk ≠ i ' ⊦ r = jvmref, r1 = jvmref, fits(r, sk ' + sks0, st), junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[crewrite-arg: fits-storekeys-rec , F , [st, sks, sk, r] → [st, sks0, sk, r] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, sks0, sk, r)]]