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Proof step 14 from proof isarray-isarrayref (previous step)

st[r -- _type] = typeval(mkarraytype(ty)), 0 ≤ st[r -- _length] .intval, r -- _type ∈ st, i ≤ st[r -- _length] .intval, r ∈ st, is_arrayref(r, st[r -- _length] .intval, st), is_integervalue(st[r -- _length]), r -- _length ∈ st, ∀ j. ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j → okval(st[r -- j '], ty) ⊦ r = jvmref, is_arrayref(r, i, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 13:
st[r -- _length] = intval(i0), st[r -- _type] = typeval(mkarraytype(ty)), 0 ≤ i0, r -- _type ∈ st, i ≤ i0, r ∈ st, is_arrayref(r, i0, st), is_integervalue(st[r -- _length]), r -- _length ∈ st, ∀ j. ¬ j < 0 ∧ ¬ i0 ≤ j → okval(st[r -- j '], ty) ⊦ r = jvmref, is_arrayref(r, i, st)

Rule argument

[speclemmaarg: ,is_integervalue(val) → (i = val .intval ↔ val = intval(i)) ,[val, i] → [st[r -- _length], i0] ,T ,javavalue , ,elim-02 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_integervalue(val) → ( i = val .intval ↔ val = intval(i))])], [EXTRATERMS : (st[r -- _length], i0)]]