Proof step 30 from proof okarray-put-okval-01 (previous step)

User applied rule insert rewrite lemma

And obtained the following new goals

• Proof step 1:

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

• Proof step 29:

  okval(val0, ty), okreftype(val, mkarraytype(ty), st) ∧ val .refval ≠ jvmref ∧ (val .refval -- _length) × intval(j) ∈ st ∧ 0 ≤ j ∧ is_arrayref(val .refval, j, st) ∧ (∀ j0. 0 ≤ j0 ∧ j0 < j → oktype(st[val .refval -- j0 '], ty, st)) ⊦ okarray(val, ty, j, st[r -- i ', val0])

Rule argument

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, j, ty, val)]]