1.31/0.69	YES
1.31/0.69	
1.31/0.69	Problem:
1.31/0.69	 a(b(b(b(x1)))) -> b(a(b(a(x1))))
1.31/0.69	 b(a(b(a(x1)))) -> b(b(b(b(x1))))
1.31/0.69	 a(a(a(b(x1)))) -> a(b(a(a(x1))))
1.31/0.69	
1.31/0.69	Proof:
1.31/0.69	 KBO Processor:
1.31/0.69	  weight function:
1.31/0.69	   w0 = 1
1.31/0.69	   w(a) = w(b) = 1
1.31/0.69	  precedence:
1.31/0.69	   a > b
1.31/0.69	  problem:
1.31/0.69	   
1.31/0.69	  Qed
1.57/0.69	EOF