From 6f254165950514ae2a5b44f6a00c358bf8b66741 Mon Sep 17 00:00:00 2001
From: Chloe Brown <chloe.brown.00@outlook.com>
Date: Wed, 30 Apr 2025 16:04:12 +0100
Subject: Add headings for each phase.

---
 sec/encoding.ltx | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sec/encoding.ltx b/sec/encoding.ltx
index 34f3ae0..2ecb8cc 100644
--- a/sec/encoding.ltx
+++ b/sec/encoding.ltx
@@ -235,6 +235,9 @@ let compose (depth, heap) =
 \vspace{-\baselineskip}
 \end{listing}
 
+\subsection{Phase 3: Encoding Lists}%
+\label{subsec:lists}
+
 \TODO{
   \begin{itemize}
     \item state that we encode lists using their eliminators
@@ -246,6 +249,9 @@ let compose (depth, heap) =
   \end{itemize}
 }
 
+\subsection{Phase 4: Encoding Sums}%
+\label{subsec:sums}
+
 \TODO{
   \begin{itemize}
     \item state that we encode sums as tagged C-style unions
@@ -256,6 +262,9 @@ let compose (depth, heap) =
   \end{itemize}
 }
 
+\subsection{Phase 5: Encoding Products}%
+\label{subsec:products}
+
 \TODO{
   \begin{itemize}
     \item state that we encode products as functions from naturals to unions
@@ -264,6 +273,9 @@ let compose (depth, heap) =
   \end{itemize}
 }
 
+\subsection{Phase 6: Encoding Unions}%
+\label{subsec:unions}
+
 \TODO{
   \begin{itemize}
     \item state that we encode unions as functions with possibly unused
@@ -274,6 +286,9 @@ let compose (depth, heap) =
   \end{itemize}
 }
 
+\subsection{Phase 7: Desugaring}%
+\label{subsec:desugar}
+
 \TODO{
   \begin{itemize}
     \item state that we desugar other operators last
-- 
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