GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#############################################################################
##
#W CWcomplexThings.gd HAPcryst package Marc Roeder
##
##
##
#H @(#)$Id: CWcomplexThings.gd, v 0.1.11 2013/10/27 18:31:09 gap Exp $
##
#Y Copyright (C) 2006 Marc Roeder
#Y
#Y This program is free software; you can redistribute it and/or
#Y modify it under the terms of the GNU General Public License
#Y as published by the Free Software Foundation; either version 2
#Y of the License, or (at your option) any later version.
#Y
#Y This program is distributed in the hope that it will be useful,
#Y but WITHOUT ANY WARRANTY; without even the implied warranty of
#Y MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#Y GNU General Public License for more details.
#Y
#Y You should have received a copy of the GNU General Public License
#Y along with this program; if not, write to the Free Software
#Y Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
##
Revision.("CWcomplexThings_gd"):=
"@(#)$Id: CWcomplexThings.gd, v 0.1.11 2013/10/27 18:31:09 gap Exp $";
DeclareOperation("UndirectedBoundaryOfFreeZGLetterNC",[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("UndirectedBoundaryOfFreeZGLetter",[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("UndirectedBoundaryOfFreeZGWordNC",[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("UndirectedBoundaryOfFreeZGWord",[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("SubspaceListFromWordNC",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("SubspaceListFromWord",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("IsConnectedWordNC",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("IsConnectedWord",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("ConnectingPathNC",
[IsHapResolutionRep,IsInt,IsDenseList,IsDenseList,IsDenseList]);
DeclareOperation("ConnectingPath",
[IsHapResolutionRep,IsInt,IsDenseList,IsDenseList,IsDenseList]);
DeclareOperation("IsContractibleWord",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("IsContractibleWordNC",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("SphereContainingCell",
[IsHapResolutionRep,IsInt,IsDenseList,IsDenseList]);
DeclareOperation("SphereContainingCellNC",
[IsHapResolutionRep,IsInt,IsDenseList,IsDenseList]);
DeclareOperation("ChainComplexFromWord",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("ChainComplexFromWordNC",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("IsContractiblePartialSpace",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("IsContractiblePartialSpaceNC",
[IsHapResolutionRep,IsInt,IsDenseList]);
DeclareOperation("ChainComplexFromPartialSpace",
[IsHapResolutionRep,IsDenseList]);
DeclareOperation("ChainComplexFromPartialSpaceNC",
[IsHapResolutionRep,IsDenseList]);