how to remove an element from a nested list?
<p>if i have an nested list such as:</p>

<pre><code>m=[[34,345,232],[23,343,342]]
</code></pre>

<p>if i write <code>m.remove(345)</code> it gives an error message saying element not in the list.</p>

<p>i want to know how to remove an element from the nested list,easily??</p>
