[Plugin: Widget Logic] Help with conditional statement

Hi,

I am trying to exclude a widget from pages, subpages and a category of posts.

This is the statement I have at the moment:

global $post; return ! (is_page(‘5’) || ($post->post_parent==”5″)) || is_single() && in_category( ‘7’ ) ;

It is removing it correctly for pages and subpages but can’t get it to work on the posts?

Any idea where I am going wrong?

Thanks