diff -r 719931014d3a -r b9b4ae3f8351 text/ncat.tex --- a/text/ncat.tex Mon Jun 27 14:26:13 2011 -0700 +++ b/text/ncat.tex Tue Jun 28 17:13:47 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