3.08/1.68	YES
3.08/1.68	
3.08/1.68	Proof:
3.08/1.69	This system is confluent.
3.08/1.69	Removed infeasible rules from system R.
3.08/1.69	By \cite{GNG13}, Theorem 9.
3.08/1.69	This system is of type 3 or smaller.
3.08/1.69	This system is deterministic.
3.08/1.69	This system is weakly left-linear.
3.08/1.69	System R transformed to optimized U(R).
3.08/1.69	This system is orthogonal.
3.08/1.69	
3.96/2.04	EOF