Proof step 35 from proof union-okarray (previous step)

User applied rule insert rewrite lemma

And obtained the following new goals

• Proof step 2:

  ⊦ okarray(r, ty, st) ↔ okreftype(refval(r), mkarraytype(ty), st) ∧ r ≠ jvmref ∧ r -- _length ∈ st ∧ is_integervalue(st[r -- _length]) ∧ 0 ≤ st[r -- _length] .intval ∧ is_arrayref(r, st[r -- _length] .intval, st) ∧ (∀ j. 0 ≤ j ∧ j < st[r -- _length] .intval → oktype(st[r -- j '], ty, st))

• Proof step 34:

  okarray(r, ty, st), r ∈ st ⊦ r = jvmref, okreftype(refval(r), mkarraytype(ty), st0 ∪ st) ∧ r ≠ jvmref ∧ r -- _length ∈ st0 ∪ st ∧ is_integervalue((st0 ∪ st)[r -- _length]) ∧ 0 ≤ (st0 ∪ st)[r -- _length] .intval ∧ is_arrayref(r, (st0 ∪ st)[r -- _length] .intval, st0 ∪ st) ∧ (∀ j. 0 ≤ j ∧ j < (st0 ∪ st)[r -- _length] .intval → oktype((st0 ∪ st)[r -- j '], ty, st0 ∪ st))

Rule argument

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st0 ∪ st, ty, r)]]