Cosmetics (pagination in Appendix A).

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

protocol/protocol.tex

@@ -10768,7 +10768,7 @@ This can be implemented in one constraint:
 \end{pnotes}
 
 
-\introsection
+\introlist
 \subsubsubsection{Range check} \label{cctrange}
 
 Let $n \typecolon \PosInt$ be a constant, and let
@@ -10841,6 +10841,7 @@ Base case $m = n-1$: since $c_{n-1} = 1$, the constraint system has
 just one boolean constraint on $a_{n-1}$, which fulfils the theorem since
 $A_{n-1} \leq C_{n-1}$ is always satisfied.
 
+\introlist
 Inductive case $m < n-1$:
 \begin{itemize}
   \item If $A_{m+1} > C_{m+1}$, then by the inductive hypothesis the constraint system
@@ -11238,7 +11239,7 @@ the additional complexity was not considered justified for \Sapling.
 When the base point $B$ is not fixed, the method in the preceding section
 cannot be used. Instead we use a naïve double-and-add method.
 
-\begin{samepage}
+\intropart
 Given $k = \vsum{i=0}{250} k_i \smult 2^i$, we calculate $R = \scalarmult{k}{B}$ using:
 
 \begin{algorithm}
@@ -11256,7 +11257,6 @@ Given $k = \vsum{i=0}{250} k_i \smult 2^i$, we calculate $R = \scalarmult{k}{B}$
   \item \tab let $\Acc_i = \Acc_{i-1} + \Addend_i$
   \item let $R = \Acc_{250}$.
 \end{algorithm}
-\end{samepage}
 
 This costs $5$ constraints for each of $250$ Edwards doublings, $6$ constraints for each
 of $250$ Edwards additions, and $2$ constraints for each of $251$ point selections,
@@ -11301,7 +11301,6 @@ as possible to be performed on the Montgomery curve. An incomplete
 Montgomery addition costs $3$ constraints, in comparison with an
 Edwards addition which costs $6$ constraints.
 
-\introlist
 However, we cannot do all additions on the Montgomery curve because the
 Montgomery addition is incomplete. In order to be able to prove that
 exceptional cases do not occur, we need to ensure that the \distinctXCriterion
@@ -11309,6 +11308,8 @@ from \crossref{cctmontarithmetic} is met. This requires splitting the
 input into segments (each using an independent generator), calculating
 an intermediate result for each segment, and then converting to the
 Edwards curve and summing the intermediate results using Edwards addition.
+
+\introlist
 Abstracting away the changes of curve, this calculation can be written as:
 
 \begin{formulae}
@@ -11546,7 +11547,7 @@ The Initialization Vector is defined as:
 \end{tabular}
 
 \vspace{2ex}
-\begin{samepage}
+\intropart
 The full hash function applied to an $8$-byte personalization string and a single
 $64$-byte block, in sequential mode with $32$-byte output, can be expressed as follows.
 
@@ -11579,7 +11580,6 @@ Define $\BlakeTwos{256} \typecolon (p \typecolon \byteseq{8}) \times (x \typecol
   \item
   \item return $\LEBStoOSPOf{256}{\concatbits\Of{\listcomp{\ItoLEBSPOf{32}{h_i \xor v_i \xor v_{i+8}} \for i \from 0 \upto 7}}}$
 \end{formulae}
-\end{samepage}
 
 In practice the message and output will be expressed as bit sequences. In the \Sapling
 circuit, the personalization string will be constant for each use.