Problem: f(g(x)) -> g(g(f(x))) f(g(x)) -> g(g(g(x))) Proof: Bounds Processor: bound: 1 enrichment: match automaton: final states: {2} transitions: g1(5) -> 6* g1(4) -> 5* g1(13) -> 14* f1(3) -> 4* f0(1) -> 2* g0(1) -> 1* 1 -> 13,3 6 -> 4,2 14 -> 4* problem: Qed