196.54/50.17	MAYBE
196.54/50.17	
196.54/50.17	Problem:
196.54/50.17	 a(x1) -> x1
196.54/50.17	 a(a(x1)) -> a(b(c(a(b(x1)))))
196.54/50.17	 c(b(x1)) -> a(c(x1))
196.54/50.17	
196.54/50.17	Proof:
196.54/50.17	 Open
196.55/50.17	EOF