{F : Type u_1} →
  {E : Type u_2} →
    [inst : CommRing F] →
      [inst_1 : Ring E] →
        [inst_2 : Algebra F E] →
          {motive : IsPurelyInseparable F E → Sort u} →
            (t : IsPurelyInseparable F E) →
              ((isIntegral : Algebra.IsIntegral F E) →
                  (inseparable' : ∀ (x : E), IsSeparable F x → x ∈ (algebraMap F E).range) → motive ⋯) →
                motive t