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diff --git a/hints/assignment_4_hint_3_hint_1.mdwn b/hints/assignment_4_hint_3_hint_1.mdwn
index d7593eb..8f06c37 100644 (file)
--- a/hints/assignment_4_hint_3_hint_1.mdwn
+++ b/hints/assignment_4_hint_3_hint_1.mdwn
@@ -1,4 +1,4 @@
-What does it mean to define X1 and X1 directly?  Well, X1 needs to be a function that
+What does it mean to define X1 and X2 directly?  Well, X1 needs to be a function that
 takes a number as argument n and returns true if n is even and false if n is not even.
 So X1 must have the behavior of the `even` function.  Fortunately, it's easy to write
 such a function without using any fixed-point combinators...