{motive : Mathlib.Tactic.ITauto.Proof → Sort u} →
  (t : Mathlib.Tactic.ITauto.Proof) →
    t.ctorIdx = 7 →
      ((ak : Mathlib.Tactic.ITauto.AndKind) →
          (p₁ p₂ : Mathlib.Tactic.ITauto.Proof) → motive (Mathlib.Tactic.ITauto.Proof.andIntro ak p₁ p₂)) →
        motive t