288 domain and range.

   288 domain and range.

   289 

   289 

   290 \nn{maybe examples of local relations before general def?}

   290 \nn{maybe examples of local relations before general def?}

   291 

   291 

   292 \subsection{Constructing a TQFT}

   292 \subsection{Constructing a TQFT}

   293 

   294 

   294 In this subsection we briefly review the construction of a TQFT from a system of fields and local relations.

   295 In this subsection we briefly review the construction of a TQFT from a system of fields and local relations.

   295 (For more details, see \cite{kw:tqft}.)

   296 (For more details, see \cite{kw:tqft}.)

   296 

   297 

   297 Let $W$ be an $n{+}1$-manifold.

   298 Let $W$ be an $n{+}1$-manifold.