YES
Time: 0.007

Problem:
 Equations:
  
 TRS:
  joinAC(x,meetAC(x,y)) -> x
  meetAC(x,joinAC(x,y)) -> x

Proof:
 AC-KBO Processor:
  precedence:
   joinAC > meetAC
   weight function:
    [meetAC](x0, x1) = x0 + x1,
    
    [joinAC](x0, x1) = x0 + x1
   problem:
    Equations:
     
    TRS:
     
   Qed