MAYBE
Time: 0.010

Problem:
 Equations:
  
 TRS:
  plusAC(x,0()) -> x
  plusAC(x,x) -> x
  plusAC(T(x),x) -> T(x)
  plusAC(T(plusAC(x,y)),x) -> T(plusAC(x,y))
  L(T(x)) -> L(x)
  L(plusAC(T(y),x)) -> plusAC(L(plusAC(x,y)),L(y))
  T(T(x)) -> T(x)
  T(plusAC(T(y),x)) -> plusAC(T(plusAC(x,y)),T(y))

Proof:
 Open