YES Proof: This system is quasi-decreasing. By \cite{A14}, Theorem 11.5.9. This system is of type 3 or smaller. This system is deterministic. System R transformed to V(R) + Emb. Call external tool: ttt2 - trs 30 Input: f(x, y) -> x f(x, y) -> g(y) f(x, y) -> g(x) g(x) -> c g(x) -> d g(x) -> x f(x, y) -> x f(x, y) -> y DP Processor: DPs: f#(x,y) -> g#(y) f#(x,y) -> g#(x) TRS: f(x,y) -> x f(x,y) -> g(y) f(x,y) -> g(x) g(x) -> c() g(x) -> d() g(x) -> x f(x,y) -> y TDG Processor: DPs: f#(x,y) -> g#(y) f#(x,y) -> g#(x) TRS: f(x,y) -> x f(x,y) -> g(y) f(x,y) -> g(x) g(x) -> c() g(x) -> d() g(x) -> x f(x,y) -> y graph: Qed