From: Jim Pryor <profjim@jimpryor.net>
Date: Thu, 16 Sep 2010 01:05:31 +0000 (-0400)
Subject: week1: tweaks
X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=1ce429f4137a261e6a93d6d7e63787697c66e0a9

week1: tweaks

Signed-off-by: Jim Pryor <profjim@jimpryor.net>
---

diff --git a/week1.mdwn b/week1.mdwn
index a5e697a5..fa1abce4 100644
--- a/week1.mdwn
+++ b/week1.mdwn
@@ -64,11 +64,13 @@ Examples of expressions:
 	x
 	(y x)
 	(x x)
-	(_x y)
-	(_x x)
-	(_x (_y x))
-	(x (_x x))
-	((_x (x x)) (_x (x x)))
+	(\x y)
+	(\x x)
+	(\x (\y x))
+	(x (\x x))
+	((\x (x x)) (\x (x x)))
+
+lthough.
 
 The *lambda* calculus has an associated proof theory. For now, we can regard the proof theory as having just one rule, called the rule of **beta-reduction** or "beta-contraction". Suppose you have some expression of the form: