{P : Sort u} →
  {a : Lean.FVarId} →
    {a_1 : Lean.SubExpr.Pos} →
      {a' : Lean.FVarId} →
        {a'_1 : Lean.SubExpr.Pos} →
          Lean.SubExpr.GoalLocation.hypType a a_1 = Lean.SubExpr.GoalLocation.hypType a' a'_1 →
            (a = a' → a_1 = a'_1 → P) → P