X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=week1.mdwn;h=48784ca90cd7170c178bdb6a932564a70ebb0624;hp=a5e697a5026751b9fb6b261f657cd2f91f69c99a;hb=31d7494ad059928e34959d4409a852278e9c2193;hpb=aa82fa84a083b7b90862f5f4c368f07dd62ae717

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index a5e697a5..48784ca9 100644
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@@ -57,18 +57,11 @@ We'll tend to write <code>(&lambda;a M)</code> as just `(\a M)`, so we don't hav
 <strong>Application</strong>: <code>(M N)</code>
 </blockquote>
 
-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:
-
-	x
-	(y x)
-	(x x)
-	(_x y)
-	(_x x)
-	(_x (_y x))
-	(x (_x x))
-	((_x (x x)) (_x (x x)))
+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:&nbsp;
+
+	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: