MAYBE MAYBE TRS: { f(n__g(X)) -> g(activate(X)), c() -> f(n__g(n__c())), c() -> n__c(), g(X) -> n__g(X), activate(X) -> X, activate(n__g(X)) -> g(X), activate(n__c()) -> c() } DUP: We consider a non-duplicating system. Trs: { f(n__g(X)) -> g(activate(X)), c() -> f(n__g(n__c())), c() -> n__c(), g(X) -> n__g(X), activate(X) -> X, activate(n__g(X)) -> g(X), activate(n__c()) -> c() } Fail