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Proof step 17 from proof okarray-del (previous step)

r0 -- _type ∈ st, is_typevalue(st[r0 -- _type]), is_arraytype(st[r0 -- _type] .type), st[r0 -- _type] .type .type ≤ ty, r0 -- _length ∈ st, is_integervalue(st[r0 -- _length]), is_arrayref(r0, st[r0 -- _length] .intval, st), r0 ∈ st, 0 ≤ st[r0 -- _length] .intval, ∀ j. ¬ j < 0 ∧ ¬ st[r0 -- _length] .intval ≤ j → okval(st[r0 -- j '], ty) ⊦ r = r0, r0 = jvmref, okreftype(refval(r0), mkarraytype(ty), st) ∧ (0 ≤ j ∧ j < st[r0 -- _length] .intval → okval(st[r0 -- j '], ty))

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 16:
st[r0 -- _length] = intval(i), r0 -- _type ∈ st, is_typevalue(st[r0 -- _type]), is_arraytype(st[r0 -- _type] .type), st[r0 -- _type] .type .type ≤ ty, r0 -- _length ∈ st, is_integervalue(st[r0 -- _length]), is_arrayref(r0, i, st), r0 ∈ st, 0 ≤ i, ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → okval(st[r0 -- j '], ty) ⊦ r = r0, r0 = jvmref, okreftype(refval(r0), mkarraytype(ty), st) ∧ (0 ≤ j ∧ j < i → okval(st[r0 -- j '], ty))

Rule argument

[speclemmaarg: ,is_integervalue(val) → (i = val .intval ↔ val = intval(i)) ,[val, i] → [st[r0 -- _length], i] ,T ,javavalue , ,elim-02 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_integervalue(val) → ( i = val .intval ↔ val = intval(i))])], [EXTRATERMS : (st[r0 -- _length], i)]]