\begin{tabbing} $\forall$${\it the\_w}$:World. \\[0ex]FairFifo \\[0ex]$\Rightarrow$ val{-}axiom(\=E;${\it the\_w}$.TA;${\it the\_w}$.M;$\lambda$$e$.w{-}info(${\it the\_w}$;$e$);$\lambda$$e$.w{-}pred(${\it the\_w}$;$e$);\+ \\[0ex]$\lambda$$i$,$x$. s($i$;0).$x$;$\lambda$$i$.1of(2of(w{-}machine(${\it the\_w}$;$i$)));$\lambda$$i$.1of(w{-}machine(${\it the\_w}$;$i$)); \\[0ex]$\lambda$$i$.2of(2of(w{-}machine(${\it the\_w}$;$i$)));$\lambda$$e$.val($e$)) \- \end{tabbing}