<Verb>BoundaryMap(K):: RegCWComplex --> RegCWMap</Verb><P/>

<P/> Inputs a pure regular CW-complex <M>K</M> and returns the  
regular CW-inclusion 
map  <M>\iota \colon  \partial K \hookrightarrow
K</M> from the boundary  
<M>\partial K</M> into the complex <M>K</M>.


