YES
Time: 0.008

Problem:
 Equations:
  
 TRS:
  fAC(i(x),fAC(x,y)) -> y

Proof:
 AC-KBO Processor:
  precedence:
   i ~ fAC
   weight function:
    w0 = 8
    w(i) = 15
    w(fAC) = 0
   problem:
    Equations:
     
    TRS:
     
   Qed