diff -r 8bda6766bbac -r 979c947d0b82 text/ncat.tex --- a/text/ncat.tex Tue Jun 28 15:43:53 2011 -0700 +++ b/text/ncat.tex Tue Jun 28 15:44:04 2011 -0700 @@ -1521,12 +1521,6 @@ $\cl{\cC}(W)$ is functorial with respect to homeomorphisms of $k$-manifolds. Restricting the $k$-spheres, we have now proved Lemma \ref{lem:spheres}. -It is easy to see that -there are well-defined maps $\cl{\cC}(W)\to\cl{\cC}(\bd W)$, and that these maps -comprise a natural transformation of functors. - - - \begin{lem} \label{lem:colim-injective} Let $W$ be a manifold of dimension less than $n$. Then for each