\begin{tabbing} $\forall$\=${\it es}$:ES, $A$:Type, $i$:Id, ${\it ds}$:$x$:Id fp$\rightarrow$ Type,\+ \\[0ex]${\it conds}$:$k$:Knd fp$\rightarrow$ $V$:Type $\times$ (State(${\it ds}$)$\rightarrow$$V$$\rightarrow$($A$ + Top)). \-\\[0ex]es{-}triggers{-}params{-}consistent(${\it es}$;$A$;$i$;${\it ds}$;${\it conds}$) $\in$ $\mathbb{P}$ \end{tabbing}