1.31/0.81 YES 1.31/0.81 1.31/0.81 Proof: 1.31/0.81 This system is confluent. 1.31/0.81 By \cite{SMI95}, Corollary 4.7 or 5.3. 1.31/0.81 This system is oriented. 1.31/0.81 This system is of type 3 or smaller. 1.31/0.81 This system is right-stable. 1.31/0.81 This system is properly oriented. 1.31/0.81 This is an overlay system. 1.31/0.81 This system is left-linear. 1.31/0.81 All 0 critical pairs are trivial or infeasible. 1.31/0.81 1.42/0.83 EOF