To uninstall 4ti2-doc just follow these instructions.
sudo apt-get remove 4ti2-doc
This will remove just the 4ti2-doc package itself.
sudo apt-get remove --auto-remove 4ti2-doc
This will remove the 4ti2-doc package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for 4ti2-doc then this will work.
sudo apt-get purge 4ti2-doc
Or similarly, like this 4ti2-doc
sudo apt-get purge --auto-remove 4ti2-doc
|Maintainer||Debian Science Maintainers <email@example.com>|
|Description||mathematical tool suite for problems on linear spaces -- user guide|