On Friday 01 July 2011 11:06:47 am HHa wrote:
> When I try to remove kdeedu-trinity, I shall remove kde-trinity as well.
> Is that o. k.?

A longer answer :-), you can check what will happen when you install or remove a 
page with 'apt-cache depends' & apt-cache rdepends'

~#apt-cache depends kde-trinity
kde-trinity
  Depends: kde-core-trinity
  Depends: kdeedu-trinity
  Depends: kdegames-trinity
  Depends: kdetoys-trinity
  Depends: kdeaccessibility-trinity
  Depends: kdeaddons-trinity
  Depends: kdeadmin-trinity
  Depends: kdeartwork-trinity
  Depends: kdegraphics-trinity
  Depends: kdemultimedia-trinity
  Depends: kdenetwork-trinity
  Depends: kdepim-trinity
  Depends: kdeutils-trinity
  Depends: kdewebdev-trinity
  Depends: desktop-base-trinity
  Suggests: <kde-i18n-trinity>
  Suggests: <x-window-system-core>
    xorg
  Suggests: kdesudo-trinity
  Suggests: debian-kgtk-trinity

~$apt-cache rdepends kde-trinity
kde-trinity
Reverse Depends:
  desktop-base-trinity

You are dealing with 'meta -packages' which help with installs but don't remove 
anything when you remove them.

-- 
Peace,

Greg