YES(?,O(n^1)) Problem: f(s(X),Y) -> h(s(f(h(Y),X))) Proof: Bounds Processor: bound: 1 enrichment: match automaton: final states: {4} transitions: h1(10) -> 4* h1(4) -> 8* s1(9) -> 10* f1(8,4) -> 9* f0(4,4) -> 4* s0(4) -> 4* h0(4) -> 4* problem: Qed