1.92/1.23 YES 1.92/1.23 1.92/1.23 Proof: 1.92/1.23 This system is confluent. 1.92/1.23 Removed infeasible rules from system R. 1.92/1.23 By \cite{GNG13}, Theorem 9. 1.92/1.23 This system is of type 3 or smaller. 1.92/1.23 This system is deterministic. 1.92/1.23 This system is weakly left-linear. 1.92/1.23 System R transformed to optimized U(R). 1.92/1.23 This system is orthogonal. 1.92/1.23 1.97/1.27 EOF