1.90/1.25 YES 1.90/1.25 1.90/1.25 Proof: 1.90/1.25 This system is confluent. 1.90/1.25 By \cite{SMI95}, Corollary 4.7 or 5.3. 1.90/1.25 This system is oriented. 1.90/1.25 This system is of type 3 or smaller. 1.90/1.25 This system is right-stable. 1.90/1.25 This system is properly oriented. 1.90/1.25 This is an overlay system. 1.90/1.25 This system is left-linear. 1.90/1.25 All 0 critical pairs are trivial or infeasible. 1.90/1.25 1.90/1.26 EOF