{σs : List (Type u)} →
  {P Q₁ Q₂ : Std.Do.SPred σs} →
    {motive : Std.Do.SPred.Tactic.IsAnd P Q₁ Q₂ → Sort u_1} →
      ((to_and : P ⊣⊢ₛ Q₁ ∧ Q₂) → motive ⋯) → (t : Std.Do.SPred.Tactic.IsAnd P Q₁ Q₂) → motive t