GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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##
## ModulesForHomalg.gd Modules package Mohamed Barakat
##
## Copyright 2007-2010, Mohamed Barakat, University of Kaiserslautern
##
## Declaration stuff for the package Modules.
##
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# our info classes:
DeclareInfoClass( "InfoModulesForHomalg" );
SetInfoLevel( InfoModulesForHomalg, 1 );
# a central place for configurations:
DeclareGlobalVariable( "HOMALG_MODULES" );
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#
# global functions and operations:
#
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# basic operations:
DeclareOperation( "HomalgRing",
[ IsHomalgObjectOrMorphism ] );
DeclareOperation( "BasisOfModule",
[ IsHomalgObjectOrMorphism ] );
DeclareOperation( "OnBasisOfPresentation",
[ IsHomalgObjectOrMorphism ] );
DeclareOperation( "OnLessGenerators",
[ IsHomalgObjectOrMorphism ] );