@@ -395,7 +395,7 @@ The construction follows the idea of STSs as described in CaReSL \cite{caresl}.
We first lift the transition relation to $\STSS\times\wp(\STST)$ (implementing a \emph{law of token conservation}) and define a stepping relation for the \emph{frame} of a given token set:
\begin{align*}
(s, T) \stsstep (s', T') \eqdef{}& s \stsstep s' \land\STSL(s) \uplus T = \STSL(s') \uplus T' \\
s \stsfstep{T} s' \eqdef{}&\Exists T_1, T_2. T_1 \disj\STSL(s) \cup T \l+and (s, T_1) \stsstep (s', T_2)
s \stsfstep{T} s' \eqdef{}&\Exists T_1, T_2. T_1 \disj\STSL(s) \cup T \land (s, T_1) \stsstep (s', T_2)
\end{align*}
We further define \emph{closed} sets of states (given a particular set of tokens) as well as the \emph{closure} of a set:
