[jQuery] UI/Slider

[jQuery] UI/Slider

I have a question about this plug in that probably applies to using most jquery plugins. At the beginning of the documentation for the <a href="http://docs.jquery.com/UI/Slider">Slider UI plugin</a>, it lists:
<b class="options">Dependancies:</b><ul>
<li> jquery.dimensions.js
</li><li> ui.mouse.js
</li></ul>Are these two dependancies included in the normal jquery code? I have found jquery.dimensions.js but I cannot find ui.mouse.js anywhere.