4.10/2.03	YES
4.10/2.03	
4.10/2.03	Proof:
4.10/2.03	This system is confluent.
4.10/2.03	By \cite{GNG13}, Theorem 9.
4.10/2.03	This system is of type 3 or smaller.
4.10/2.03	This system is deterministic.
4.10/2.03	This system is weakly left-linear.
4.10/2.03	System R transformed to optimized U(R).
4.10/2.03	This system is orthogonal.
4.10/2.03	
5.68/2.42	EOF