MAYBE
Time: 0.066

Problem:
 Equations:
  
 TRS:
  pAC(x,zero()) -> x
  mAC(x,one()) -> x
  mAC(z,pAC(x,y)) -> pAC(mAC(z,x),mAC(z,y))
  mAC(pAC(x,y),z) -> pAC(mAC(x,z),mAC(y,z))

Proof:
 Open