From 0ef6782afa245b0744d82dc7ff2d5a34a1fe2dc1 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 8 Jul 2012 00:27:00 +0100
Subject: [PATCH] traversal: Base/Tip Correct Contents chane notation

---
 trav-alg.tex    | 4 ++--
 trav-proofs.tex | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/trav-alg.tex b/trav-alg.tex
index 210b20b..df5e4cd 100644
--- a/trav-alg.tex
+++ b/trav-alg.tex
@@ -30,9 +30,9 @@ such that:
   \baseof{\tipcy} = \tipcn
 }
 \statement{Base Correct Contents}{
-  \tipcn \haspatch \pd
+  \tipcn \haspatch \pa E
    \equiv
-  \pd \isdep \pc
+  \pa E \isdep \pc
 }
 \statement{Tip Exceeds Inputs}{
   \tipcy \ge \pendsof{\allsrcs}{\pcy}
diff --git a/trav-proofs.tex b/trav-proofs.tex
index 876525d..f1993d3 100644
--- a/trav-proofs.tex
+++ b/trav-proofs.tex
@@ -9,13 +9,13 @@ WIP WHAT ABOUT PROVING ALL THE TRAVERSAL RESULTS
 
 Firstly, some lemmas.
 \statement{Tip Correct Contents}{
-  \tipcy \haspatch \pd
+  \tipcy \haspatch \pa E
     \equiv
-  \pd = \pc \lor \pd \isdep \pc
+  \pa E = \pc \lor \pa E \isdep \pc
 }
 \proof{
-  For $\pc = \pd$, Tip Own Contents suffices.
-  For $\pc \neq \pd$, Exclusive Tip Contents
+  For $\pc = \pa E$, Tip Own Contents suffices.
+  For $\pc \neq \pa E$, Exclusive Tip Contents
   gives $D \isin \tipcy \equiv D \isin \baseof{\tipcy}$
   which by Correct Base $\equiv D \isin \tipcn$.
 }
-- 
2.30.2