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Proof step 37 from proof subset-okarray (previous step)

st[r -- _length] = intval(i), st[r -- _type] .type = mkarraytype(ty0), r ∈ st, 0 ≤ i, ty0 ≤ ty, is_typevalue(st[r -- _type]), r -- _type ∈ st, is_arrayref(r, i, st), is_integervalue(st[r -- _length]), r -- _length ∈ st, ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → okval(st[r -- j0 '], ty), ∀ rk. rk ∈ st → rk ∈ st0 ∧ st[rk] = st0[rk] ⊦ r = jvmref, okreftype(refval(r), mkarraytype(ty), st0) ∧ r -- _length ∈ st0 ∧ is_integervalue(st0[r -- _length]) ∧ ¬ st0[r -- _length] .intval < 0 ∧ is_arrayref(r, st0[r -- _length] .intval, st0) ∧ (0 ≤ j ∧ j < st0[r -- _length] .intval → okval(st0[r -- j '], ty))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 36:
st[r -- _type] .type = mkarraytype(ty0), st[r -- _length] = intval(i), 0 ≤ i, r -- _length ∈ st, is_arrayref(r, i, st), r -- _type ∈ st, is_typevalue(st[r -- _type]), ty0 ≤ ty, r ∈ st, ∀ rk. rk ∈ st → rk ∈ st0 ∧ st[rk] = st0[rk], ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → okval(st[r -- j0 '], ty) ⊦ r = jvmref, okreftype(refval(r), mkarraytype(ty), st0) ∧ r -- _length ∈ st0 ∧ is_integervalue(st0[r -- _length]) ∧ ¬ st0[r -- _length] .intval < 0 ∧ is_arrayref(r, st0[r -- _length] .intval, st0) ∧ (0 ≤ j ∧ j < st0[r -- _length] .intval → okval(st0[r -- j '], ty))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_integervalue(intval(i))], [CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j])]]