195.88/50.12	MAYBE
195.88/50.12	
195.88/50.12	Problem:
195.88/50.12	 a(x1) -> b(x1)
195.88/50.12	 b(a(b(c(x1)))) -> c(c(a(a(a(a(x1))))))
195.88/50.12	
195.88/50.12	Proof:
195.88/50.12	 Open
195.88/50.13	EOF