YES(?,O(n^1))
TRS:
 {app(app(app(uncurry(), f), x), y) -> app(app(f, x), y)}
 DUP: We consider a non-duplicating system.
  Trs:
   {app(app(app(uncurry(), f), x), y) -> app(app(f, x), y)}
  Natural interpretation:
   Strict:
    {app(app(app(uncurry(), f), x), y) -> app(app(f, x), y)}
   Weak:
    {}
   Interpretation class: stronglylinear
   [uncurry] = + 5
   [app](X1, X0) = + 1*X0 + 1*X1 + 3
   
   Qed