The GAP package IRREDSOL Version IRREDSOL_VERSION IRREDSOL is a GAP package which provides a library of all irreducible soluble subgroups of GL(n, q), up to conjugacy, where n is a positive integer and q a prime power satisfying q^n <= 2^24-1, and a library of all primitive soluble groups of degree at most 2^24-1. This version of IRREDSOL requires at least GAP 4.5. In order to install IRREDSOL, you have to get the package archive file 'irredsol-IRREDSOL_VERSION.tar.gz', or any other archive format suitable for your system. It is available for download from http://www.gap-system.org/Packages/irredsol.html To install IRREDSOL, move the package archive file into the 'pkg' directory in which you plan to install IRREDSOL. Usually, this will be the directory 'pkg' in the GAP directory. You should now have a directory `irredsol-IRREDSOL_VERSION' in the `pkg' directory. If you already have a previous version of IRREDSOL, that is, there is a directory whose name starts with 'irredsol' in the 'pkg' directory, you may delete that directory (or move it outside the pkg directory). To load the IRREDSOL package manually, start GAP and type LoadPackage ("irredsol"); at the GAP prompt. If everything is ok, this should print a banner (if IRREDSOL is not already loaded) and return `true'. Please do not hesitate to report any bugs or other problems/suggestions to the author: Burkhard Höfling e-mail: b.hoefling@tu-bs.de www: http://www.icm.tu-bs.de/~bhoeflin