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$\forall$\=${\it poss}$:(ES\{i\}$\rightarrow\mathbb{P}$\{i'\}), $T$:Type\{i\}, $s$:$T$, $i$:Id, $P$:(possible{-}event\{i:l\}(${\it poss}$)$\rightarrow\mathbb{P}$\{i'\}),\+
\\[0ex]$R$:(possible{-}event\{i:l\}(${\it poss}$)$\rightarrow$possible{-}event\{i:l\}(${\it poss}$)$\rightarrow\mathbb{P}$\{i'\}), ${\it Rs}$:($T$$\rightarrow$$T$$\rightarrow\mathbb{P}$\{i'\}).
\-\\[0ex]ma{-}knows\{i:l\}(${\it poss}$; $i$; $T$; $s$; $P$; ${\it Rs}$; $R$) $\in$ $\mathbb{P}$\{i'\}
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