From 3a08849b14cc00a2a279acd120f3835414ea1a82 Mon Sep 17 00:00:00 2001
From: Jim Pryor
Date: Wed, 15 Sep 2010 21:12:37 -0400
Subject: [PATCH] week1: tweaks
Signed-off-by: Jim Pryor
---
week1.mdwn | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/week1.mdwn b/week1.mdwn
index 329333cb..897ef1f8 100644
--- a/week1.mdwn
+++ b/week1.mdwn
@@ -59,11 +59,18 @@ We'll tend to write `(λa M)`

as just `(\a M)`, so we don't hav
Some authors reserve the term "term" for just variables and abstracts. We won't participate in that convention; we'll probably just say "term" and "expression" indiscriminately for expressions of any of these three forms.
-Samples of expressions:
+Examples of expressions:
-> foo
+ x
+ (y x)
+ (x x)
+ (\x y)
+ (\x x)
+ (\x (\y x))
+ (x (\x x))
+ ((\x (x x)) (\x (x x)))
-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:
+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:
((\a M) N)
--
2.11.0