From: Bruno Michel <bruno@...>
Date: 2007-06-07T19:29:03+09:00
Subject: Re: Mutually-Recursive Functions

For the even and odd example, it works if you remplace odd by my_odd in 
the my_even function, and even by my_even in the my_odd function. Like this:

def my_even(x)
   x == 0 or my_odd(x - 1)
end

def my_odd(x)
   x != 0 and my_even(x - 1)
end

my_even(10) #=> true


Hope this helps.

-- 
Bruno Michel