--- a/text/intro.tex	Sun Oct 24 22:03:42 2010 -0700
+++ b/text/intro.tex	Sun Oct 24 22:20:40 2010 -0700
@@ -94,19 +94,19 @@
 {\center
 \beginpgfgraphicnamed{gadgets-external}%
 \begin{tikzpicture}[align=center,line width = 1.5pt]
-\newcommand{\xa}{2}
-\newcommand{\xb}{8}
-\newcommand{\ya}{14}
-\newcommand{\yb}{10}
-\newcommand{\yc}{6}
+\newcommand{\xxa}{2}
+\newcommand{\xxb}{8}
+\newcommand{\yya}{14}
+\newcommand{\yyb}{10}
+\newcommand{\yyc}{6}
 
-\node[box] at (-4,\yb) (tC) {$C$ \\ a `traditional' \\ weak $n$-category};
-\node[box] at (\xa,\ya) (C) {$\cC$ \\ a topological \\ $n$-category};
-\node[box] at (\xb,\ya) (A) {$\underrightarrow{\cC}(M)$ \\ the (dual) TQFT \\ Hilbert space};
-\node[box] at (\xa,\yb) (FU) {$(\cF, U)$ \\ fields and\\ local relations};
-\node[box] at (\xb,\yb) (BC) {$\bc_*(M; \cF)$ \\ the blob complex};
-\node[box] at (\xa,\yc) (Cs) {$\cC_*$ \\ an $A_\infty$ \\$n$-category};
-\node[box] at (\xb,\yc) (BCs) {$\underrightarrow{\cC_*}(M)$};
+\node[box] at (-4,\yyb) (tC) {$C$ \\ a `traditional' \\ weak $n$-category};
+\node[box] at (\xxa,\yya) (C) {$\cC$ \\ a topological \\ $n$-category};
+\node[box] at (\xxb,\yya) (A) {$\underrightarrow{\cC}(M)$ \\ the (dual) TQFT \\ Hilbert space};
+\node[box] at (\xxa,\yyb) (FU) {$(\cF, U)$ \\ fields and\\ local relations};
+\node[box] at (\xxb,\yyb) (BC) {$\bc_*(M; \cF)$ \\ the blob complex};
+\node[box] at (\xxa,\yyc) (Cs) {$\cC_*$ \\ an $A_\infty$ \\$n$-category};
+\node[box] at (\xxb,\yyc) (BCs) {$\underrightarrow{\cC_*}(M)$};