ents, as in

<p>
<pre>
(let (blast (port (current-output-port)) . (x (+ 1 2) 4 5))
  (if (null? x)
    'just-a-silly-contrived-example
    (begin
      (write (car x) port)
      (apply blast port (cdr x)))))
</pre>

otherwise equivalent to

<p>
<pre>
(letrec ((blast (lambda (port . x)
		  (if (null? x)
		      'just-a-silly-contrived-example
		      (begin
			(write (car x) port)
			(apply blast port (cdr x)))))))
  (blast (current-output-port) (+ 1 2) 4 5))
</pre>

While this example is rather contrived, 