9.68/2.79	YES
9.68/2.80	
9.68/2.80	Problem:
9.68/2.80	 b(a(b(b(x1)))) -> b(b(b(b(x1))))
9.68/2.80	 b(b(a(a(x1)))) -> a(a(b(b(x1))))
9.68/2.80	 b(a(b(b(x1)))) -> b(a(a(a(x1))))
9.68/2.80	
9.68/2.80	Proof:
9.68/2.80	 Matrix Interpretation Processor: dim=3
9.68/2.80	  
9.68/2.80	  interpretation:
9.68/2.80	             [1 0 0]  
9.68/2.80	   [a](x0) = [0 0 1]x0
9.68/2.80	             [0 1 0]  ,
9.68/2.80	   
9.68/2.80	             [1 0 2]     [0]
9.68/2.80	   [b](x0) = [0 1 2]x0 + [1]
9.68/2.80	             [0 0 0]     [0]
9.68/2.80	  orientation:
9.68/2.80	                    [1 2 6]     [4]    [1 0 2]     [0]                 
9.68/2.80	   b(a(b(b(x1)))) = [0 2 4]x1 + [5] >= [0 1 2]x1 + [4] = b(b(b(b(x1))))
9.68/2.80	                    [0 0 0]     [0]    [0 0 0]     [0]                 
9.68/2.80	   
9.68/2.80	                    [1 0 2]     [0]    [1 0 2]     [0]                 
9.68/2.80	   b(b(a(a(x1)))) = [0 1 2]x1 + [2] >= [0 1 2]x1 + [2] = a(a(b(b(x1))))
9.68/2.80	                    [0 0 0]     [0]    [0 0 0]     [0]                 
9.68/2.80	   
9.68/2.80	                    [1 2 6]     [4]    [1 2 0]     [0]                 
9.68/2.80	   b(a(b(b(x1)))) = [0 2 4]x1 + [5] >= [0 2 1]x1 + [1] = b(a(a(a(x1))))
9.68/2.80	                    [0 0 0]     [0]    [0 0 0]     [0]                 
9.68/2.80	  problem:
9.68/2.80	   b(b(a(a(x1)))) -> a(a(b(b(x1))))
9.68/2.80	  String Reversal Processor:
9.68/2.80	   a(a(b(b(x1)))) -> b(b(a(a(x1))))
9.68/2.80	   KBO Processor:
9.68/2.80	    weight function:
9.68/2.80	     w0 = 1
9.68/2.80	     w(a) = w(b) = 1
9.68/2.80	    precedence:
9.68/2.80	     a > b
9.68/2.80	    problem:
9.68/2.80	     
9.68/2.80	    Qed
9.68/2.80	EOF