X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=week1.mdwn;h=e7061a81fb07747bebde43e1709d976d4a8b10ce;hp=897ef1f8ae37429e35509fd2cd0a8de984c12abc;hb=e75bdfe04dfe4891b07601e5a7820234503e2f71;hpb=ce1b2e16033c1a6757aa33952e1be0aefd3155e6

diff --git a/week1.mdwn b/week1.mdwn
index 897ef1f8..e7061a81 100644
--- a/week1.mdwn
+++ b/week1.mdwn
@@ -59,18 +59,11 @@ We'll tend to write <code>(&lambda;a M)</code> 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.
 
-Examples of expressions:
+Samples of expressions: 
 
-	x
-	(y x)
-	(x x)
-	(\x y)
-	(\x x)
-	(\x (\y x))
-	(x (\x x))
-	((\x (x x)) (\x (x x)))
+	foo
 
-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)