... 19where R, G, P , Q,andRgare the formal power series defined and calculated for therule Ω, and, for any formal power series Z on the alphabet Σ, ξ(Z) is defined as theformal power series ... Aa,b,Ba,b, Ar, Br, Ag,andBg. In practice, all the equations in (33) can be easily deduced fromthe equations (31) and (32) for the series A and B. For instance the equation for Aa,bisobtained ... the equation for A, with the precaution that the terms ending with R and G do not contribute to Aa,b.Concerning (34), here we compute the equations for PA, QA,andSA, omitting for brevity’s...