Turn some uses of \emph into \firstuse

chapters/connectors.tex

@@ -885,25 +885,27 @@ \subsection{Overconstrained Equation Operators for Connection Graphs}\doublelabe
 
 \begin{longtable}[]{|p{5.1cm}|p{10cm}|}
 \hline \endhead
-\lstinline!connect(A,B);! & Defines \emph{optional spanning-tree edge} from the
-overdetermined type or record instances in connector instance A to the
+\lstinline!connect(A,B);! &
+Defines \firstuse{optional spanning-tree edge} from the
+overdetermined type or record instances in connector instance \lstinline!A! to the
 corresponding overdetermined type or record instances in connector
-instance B for a virtual connection graph. The types of the
+instance \lstinline!B! for a virtual connection graph. The types of the
 corresponding overdetermined type or record instances shall be the
 same.\\ \hline
-\lstinline!Connections.branch(A.R,B.R);! & Defines a \emph{required spanning-tree edge}
-from the overdetermined type or record instance R in connector instance
-A to the corresponding overdetermined type or record instance R in
-connector instance B for a virtual connection graph. This function can
-be used at all places where a connect(..) statement is allowed.
+\lstinline!Connections.branch(A.R,B.R);! &
+Defines a \firstuse{required spanning-tree edge}
+from the overdetermined type or record instance \lstinline!R! in connector instance
+\lstinline!A! to the corresponding overdetermined type or record instance \lstinline!R! in
+connector instance \lstinline!B! for a virtual connection graph. This function can
+be used at all places where a \lstinline!connect(..)! statement is allowed.
 \par
 \begin{nonnormative*}
 E.g., it is not allowed to use this function in a when-clause.  This definition shall be used if in a model with connectors \lstinline!A! and \lstinline!B! the overdetermined
 records \lstinline!A.R! and \lstinline!B.R! are algebraically coupled in the model, e.g., due to \lstinline!B.R = f(A.R!, \textless{}other unknowns\textgreater{}).
 \end{nonnormative*}
 \\ \hline
-\lstinline!Connections.root(A.R);! & The overdetermined type or record instance R in
-connector instance A is a (definite) \emph{root node} in a virtual connection graph.
+\lstinline!Connections.root(A.R);! & The overdetermined type or record instance \lstinline!R! in
+connector instance \lstinline!A! is a (definite) \firstuse{root node} in a virtual connection graph.
 \par
 \begin{nonnormative*}
 This definition shall be used if in a model with connector \lstinline!A! the overdetermined record \lstinline!A.R! is (consistently) assigned, e.g., from a parameter expressions.
@@ -915,7 +917,7 @@ \subsection{Overconstrained Equation Operators for Connection Graphs}\doublelabe
 \lstinline!A.R, priority = p)!;
 \end{tabular}
 & The overdetermined type or record instance \lstinline!R! in connector instance \lstinline!A! is
-a \emph{potential root node} in a virtual connection graph with priority
+a \firstuse{potential root node} in a virtual connection graph with priority
 \lstinline!p! ($p\ge 0$). If no second argument is provided, the priority is zero.
 \lstinline!p! shall be a parameter expression of type \lstinline!Integer!. In a
 virtual connection subgraph without a \lstinline!Connections.root! definition, one