design/tpl (Notational Convetions): Clean up unneeded bicompi

This was originally going to be used to define @yields for the classifier,
but I took a very different approach which doesn't require reasoning about
the system in terms of recursion.

design/tpl/sec/notation.tex

@@ -312,33 +312,10 @@ The symbol~$\_$ is used to denote a variable that matches anything but is
     and is often referred to as a ``wildcard'' (since it matches anything)
     or a ``hole'' (since its value goes nowhere).
 
-\indexsym{\bicompi{R}}{function, binary composition, recursive}
-\index{function!binary composition (\ensuremath{\bicomp{R}})!recursive (\ensuremath{\bicompi{R}})}
-For convenience,
-  we also define $\bicompi{R}$,
-  which recursively handles combinations of function and scalar values.
-This notation is used to simplify definitions of the classification system
-  (see \secpref{class})
-  when dealing with vectors
-    (see \secref{vec}).
-
-\mremark{$\bicompi{R}$ may be removed depending on how $\Classify$ is defined.}
-\begin{equation}\label{eq:bicompi}
-  \alpha \bicompi{R} \beta =
-    \begin{cases}
-      \gamma \mapsto \alpha_\gamma \bicompi{R} \beta_\gamma
-        &\text{if } (\alpha : A\rightarrow B) \land (\beta : A\rightarrow D),\\
-      \gamma \mapsto \alpha_\gamma \bicompi{R} (\_ \mapsto \beta)
-        &\text{if } (\alpha : A\rightarrow B) \land (\beta \in\Real),\\
-      \alpha R \beta &\text{otherwise}.
-    \end{cases}
-\end{equation}
-
 Note that we consider the bracket notation for the image of a function
   $(f:A\rightarrow B)[A]$ to itself be a binary function.
 Given that, we have $f\bicomp{[]} = f\bicomp{[A]}$ for functions returning
-  functions (such as vectors of vectors in \secref{vec}),
-    noting that $\bicompi{[]}$ is \emph{not} a sensible construction.
+  functions (such as vectors of vectors in \secref{vec}).
 
 
 \subsection{Monoids and Sequences}\seclabel{monoids}
@@ -505,16 +482,6 @@ Since a vector is a function,
     &=       &&\Set{0,1,2}.
 \end{alignat*}
 
-We can also add two vectors, and scale them:
-
-\begin{align*}
-  1 \bicompi{+} \Vector{1,2,3} \bicompi{+} \Vector{4,5,6}
-    &= \Vector{1+1,\, 2+1,\, 3+1} \bicomp{+} \Vector{4,5,6} \\
-    &= \Vector{2,3,4} \bicomp{+} \Vector{4,5,6} \\
-    &= \Vector{2+4,\, 3+5,\, 4+6} \\
-    &= \Vector{6, 8, 10}.
-\end{align*}
-
 
 \subsection{XML Notation}
 \indexsym{\xml{<>}}{XML}

design/tpl/tpl.sty

@@ -137,7 +137,6 @@
 
 % Binary function composition
 \newcommand\bicomp[1]{{#1}^\circ}
-\newcommand\bicompi[1]{{#1}^\bullet}
 
 \let\xml\texttt