YES
Time: 0.009

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

Proof:
 AC-RPO Processor:
  precedence:
   0 > f > plusAC
  status:
   
  problem:
   Equations:
    
   TRS:
    
  Qed