1.66/0.73	YES
1.66/0.73	
1.66/0.73	Problem:
1.66/0.73	 a(b(b(a(x1)))) -> a(a(a(a(x1))))
1.66/0.73	 b(b(a(a(x1)))) -> b(a(a(a(x1))))
1.66/0.73	 b(b(a(a(x1)))) -> b(a(b(b(x1))))
1.66/0.73	
1.66/0.73	Proof:
1.66/0.73	 KBO Processor:
1.66/0.73	  weight function:
1.66/0.73	   w0 = 1
1.66/0.73	   w(b) = w(a) = 1
1.66/0.73	  precedence:
1.66/0.73	   b > a
1.66/0.73	  problem:
1.66/0.73	   
1.66/0.73	  Qed
1.66/0.74	EOF