2.56/1.16	YES
2.56/1.16	
2.56/1.16	Proof:
2.56/1.16	This system is confluent.
2.56/1.16	By \cite{GNG13}, Theorem 9.
2.56/1.16	This system is of type 3 or smaller.
2.56/1.16	This system is deterministic.
2.56/1.16	This system is weakly left-linear.
2.56/1.16	System R transformed to optimized U(R).
2.56/1.16	This system is orthogonal.
2.56/1.16	
2.92/1.59	EOF