text/blobdef.tex
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   156 \end{itemize}
   156 \end{itemize}
   157 Combining these two operations can give rise to configurations of blobs whose complement in $X$ is not
   157 Combining these two operations can give rise to configurations of blobs whose complement in $X$ is not
   158 a manifold.
   158 a manifold.
   159 Thus will need to be more careful when speaking of a field $r$ on the complement of the blobs.
   159 Thus will need to be more careful when speaking of a field $r$ on the complement of the blobs.
   160 
   160 
   161 \begin{example}
   161 \begin{example} \label{sin1x-example}
   162 Consider the four subsets of $\Real^3$,
   162 Consider the four subsets of $\Real^3$,
   163 \begin{align*}
   163 \begin{align*}
   164 A & = [0,1] \times [0,1] \times [0,1] \\
   164 A & = [0,1] \times [0,1] \times [0,1] \\
   165 B & = [0,1] \times [-1,0] \times [0,1] \\
   165 B & = [0,1] \times [-1,0] \times [0,1] \\
   166 C & = [-1,0] \times \setc{(y,z)}{z \sin(1/z) \leq y \leq 1, z \in [0,1]} \\
   166 C & = [-1,0] \times \setc{(y,z)}{z \sin(1/z) \leq y \leq 1, z \in [0,1]} \\