3.79/1.30	YES
3.79/1.69	
3.79/1.69	Problem:
3.79/1.69	 b(a(x1)) -> a(b(x1))
3.79/1.69	 a(a(a(x1))) -> b(a(a(b(x1))))
3.79/1.69	 b(b(b(b(x1)))) -> a(x1)
3.79/1.69	
3.79/1.69	Proof:
3.79/1.69	 String Reversal Processor:
3.79/1.69	  a(b(x1)) -> b(a(x1))
3.79/1.69	  a(a(a(x1))) -> b(a(a(b(x1))))
3.79/1.69	  b(b(b(b(x1)))) -> a(x1)
3.79/1.69	  Matrix Interpretation Processor: dim=1
3.79/1.69	   
3.79/1.69	   interpretation:
3.79/1.69	    [b](x0) = x0 + 4,
3.79/1.69	    
3.79/1.69	    [a](x0) = x0 + 8
3.79/1.69	   orientation:
3.79/1.69	    a(b(x1)) = x1 + 12 >= x1 + 12 = b(a(x1))
3.79/1.69	    
3.79/1.69	    a(a(a(x1))) = x1 + 24 >= x1 + 24 = b(a(a(b(x1))))
3.79/1.69	    
3.79/1.69	    b(b(b(b(x1)))) = x1 + 16 >= x1 + 8 = a(x1)
3.79/1.69	   problem:
3.79/1.69	    a(b(x1)) -> b(a(x1))
3.79/1.69	    a(a(a(x1))) -> b(a(a(b(x1))))
3.79/1.69	   String Reversal Processor:
3.79/1.69	    b(a(x1)) -> a(b(x1))
3.79/1.69	    a(a(a(x1))) -> b(a(a(b(x1))))
3.79/1.69	    KBO Processor:
3.79/1.69	     weight function:
3.79/1.69	      w0 = 1
3.79/1.69	      w(a) = 1
3.79/1.69	      w(b) = 0
3.79/1.69	     precedence:
3.79/1.69	      b > a
3.79/1.69	     problem:
3.79/1.69	      
3.79/1.69	     Qed
3.79/1.69	EOF