2 Installation 2.1 How to install this package This package can only be used on a system that has 4ti2 installed. For more information about this please visit www.4ti2.de (http://www.4ti2.de). For installing this package, first make sure you have 4ti2 installed. Copy it in your GAP pkg-directory. After this, the package can be loaded via LoadPackage( "4ti2Interface" );