733.09/299.38	MAYBE
733.09/299.39	
733.09/299.39	Problem:
733.09/299.39	 strict:
733.09/299.39	  a(b(c(x1))) -> b(a(a(x1)))
733.09/299.39	  a(b(b(x1))) -> b(c(a(x1)))
733.09/299.39	 weak:
733.09/299.39	  a(b(a(x1))) -> a(b(a(x1)))
733.09/299.39	  c(b(a(x1))) -> a(a(b(x1)))
733.09/299.39	  c(a(a(x1))) -> c(a(b(x1)))
733.09/299.39	  c(b(c(x1))) -> a(c(c(x1)))
733.09/299.39	
733.09/299.39	Proof:
733.09/299.39	 Open
733.09/299.39	EOF