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: not(x) -> false not(x) -> x not(x) -> true not(x) -> x DP Processor: DPs: TRS: not(x) -> false() not(x) -> x not(x) -> true() Qed