week1: fix markup processing?

[lambda.git] / week1.mdwn

diff --git a/week1.mdwn b/week1.mdwn
index 388fb9f..8484b17 100644 (file)
--- a/week1.mdwn
+++ b/week1.mdwn
@@ -62,13 +62,13 @@ Some authors reserve the term "term" for just variables and abstracts. We won't
 Examples of expressions:
 
 <blockquote><code>
-x
-(y x)
-(x x)
-(\x y)
-(\x x)
-(\x (\y x))
-(x (\x x))
+x  
+(y x)  
+(x x)  
+(\x y)  
+(\x x)  
+(\x (\y x))  
+(x (\x x))  
 ((\x (x x)) (\x (x x)))
 </code></blockquote>
 
@@ -76,7 +76,7 @@ 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)
+       ((lambda a M) N)
 
 that is, an application of an abstract to some other expression. This compound form is called a **redex**, meaning it's a "beta-reducible expression." `(\a M)` is called the **head** of the redex; `N` is called the **argument**, and `M` is called the **body**.