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author
barker
<barker@web>
Mon, 4 Oct 2010 17:22:43 +0000
(13:22 -0400)
committer
Lambda Wiki
<lambda@SERVER.PHILOSOPHY.FAS.NYU.EDU>
Mon, 4 Oct 2010 17:22:43 +0000
(13:22 -0400)
hints/assignment_4_hint_3_hint_1.mdwn
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a/hints/assignment_4_hint_3_hint_1.mdwn
b/hints/assignment_4_hint_3_hint_1.mdwn
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--- a/
hints/assignment_4_hint_3_hint_1.mdwn
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hints/assignment_4_hint_3_hint_1.mdwn
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-1,4
+1,4
@@
What does it mean to define X1 and X2 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 `n` as argument and returns
true if n is even and false if n
is not even.
+takes a number `n` as argument 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...
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...