2.01/1.28	YES
2.01/1.28	
2.01/1.28	Proof:
2.01/1.28	This system is confluent.
2.01/1.28	By \cite{GNG13}, Theorem 9.
2.01/1.28	This system is of type 3 or smaller.
2.01/1.28	This system is deterministic.
2.01/1.28	This system is weakly left-linear.
2.01/1.28	System R transformed to optimized U(R).
2.01/1.28	This system is orthogonal.
2.01/1.28	
2.01/1.31	EOF