2.30/1.09	YES
2.30/1.09	
2.30/1.09	Proof:
2.30/1.09	This system is confluent.
2.30/1.09	By \cite{GNG13}, Theorem 9.
2.30/1.09	This system is of type 3 or smaller.
2.30/1.09	This system is deterministic.
2.30/1.09	This system is weakly left-linear.
2.30/1.09	System R transformed to optimized U(R).
2.30/1.09	This system is orthogonal.
2.30/1.09	
2.30/1.12	EOF