3.51/1.75	YES
3.51/1.75	
3.51/1.75	Proof:
3.51/1.75	This system is confluent.
3.51/1.75	By \cite{GNG13}, Theorem 9.
3.51/1.75	This system is of type 3 or smaller.
3.51/1.75	This system is deterministic.
3.51/1.75	This system is weakly left-linear.
3.51/1.75	System R transformed to optimized U(R).
3.51/1.75	This system is orthogonal.
3.51/1.75	
5.42/2.23	EOF