196.04/50.17	MAYBE
196.04/50.17	
196.04/50.17	Problem:
196.04/50.17	 a(x1) -> b(x1)
196.04/50.17	 a(b(a(c(x1)))) -> a(c(c(a(a(a(x1))))))
196.04/50.17	
196.04/50.17	Proof:
196.04/50.17	 Open
196.04/50.18	EOF