How to escape < and > inside <pre> tags

http://stackoverflow.com/questions/42182/how-to-escape-and-inside-pre-tags

<pre>

    PrimeCalc calc = new PrimeCalc();

    Func<int, int> del = calc.GetNextPrime;

</pre>

<pre>

    PrimeCalc calc = new PrimeCalc();

    Func&lt;int, int&gt; del = calc.GetNextPrime;

</pre>