1.98/1.28 YES 1.98/1.28 1.98/1.28 Proof: 1.98/1.28 This system is confluent. 1.98/1.28 Removed infeasible rules from system R. 1.98/1.28 By \cite{GNG13}, Theorem 9. 1.98/1.28 This system is of type 3 or smaller. 1.98/1.28 This system is deterministic. 1.98/1.28 This system is weakly left-linear. 1.98/1.28 System R transformed to optimized U(R). 1.98/1.28 This system is orthogonal. 1.98/1.28 3.50/1.67 EOF