title: How do you set a variable in Racket after evaluating a condition
body: <p>I'm having trouble setting variables in Racket following evaluation of a condition. If I have a function definition like</p>
  
  <pre><code>(define foo
    (lambda (x y z)
      (cond
        ((&gt; 3 2)
          (what code here?)))))
  </code></pre>
  
  <p>Say I want to set the variable z to the value 10 if the condition evaluates to true, what is the syntax?</p>