4.55/2.19	YES
4.55/2.19	
4.55/2.19	Proof:
4.56/2.26	This system is confluent.
4.56/2.26	By \cite{GNG13}, Theorem 9.
4.56/2.26	This system is of type 3 or smaller.
4.56/2.26	This system is deterministic.
4.56/2.26	This system is weakly left-linear.
4.56/2.26	System R transformed to optimized U(R).
4.56/2.26	This system is orthogonal.
4.56/2.26	
7.14/2.76	EOF