GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
\begin{theindex} \item \texttt {BoundaryOfFreeZGLetter}, \hyperpage{8} \item \texttt {Boundary}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{13} \item \texttt {BoundaryOfFreeZGLetterNC}, \hyperpage{10} \item \texttt {Boundary}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter}\discretionary {-}{}{}\texttt {N}\discretionary {-}{}{}\texttt {C{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{13} \item \texttt {BoundaryOfFreeZGWord}, \hyperpage{9} \item \texttt {Boundary}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Word{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{13} \item \texttt {BoundaryOfFreeZGWordNC}, \hyperpage{11} \item \texttt {Boundary}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Generator{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {Boundary}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Generator}\discretionary {-}{}{}\texttt {N}\discretionary {-}{}{}\texttt {C{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \indexspace \item \texttt {ConvertLetterToStandardRep}, \hyperpage{9} \item \texttt {ConvertLetterToStandardRepNC}, \hyperpage{9} \item \texttt {ConvertStandardLetter}, \hyperpage{9} \item \texttt {ConvertStandardLetterNC}, \hyperpage{9} \item \texttt {ConvertStandardWord}, \hyperpage{9} \item \texttt {ConvertStandardWordNC}, \hyperpage{9} \item \texttt {ConvertWordToStandardRep}, \hyperpage{9} \item \texttt {ConvertWordToStandardRepNC}, \hyperpage{9} \indexspace \item \texttt {Generators}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Module}\discretionary {-}{}{}\texttt {Of}\discretionary {-}{}{}\texttt {Resolution{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {GroupElementFromPosition}, \hyperpage{8} \item \texttt {GroupRingOfResolution}, \hyperpage{11} \indexspace \item \texttt {IsFreeZGLetter}, \hyperpage{10} \item \texttt {IsFree}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {IsFree}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter}\discretionary {-}{}{}\texttt {No}\discretionary {-}{}{}\texttt {Term}\discretionary {-}{}{}\texttt {Check{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{11} \item \texttt {IsFreeZGWord}, \hyperpage{10} \item \texttt {IsFree}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Word{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {IsFree}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Word}\discretionary {-}{}{}\texttt {No}\discretionary {-}{}{}\texttt {Term}\discretionary {-}{}{}\texttt {Check{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{11} \item \texttt {IsValidGroupInt}, \hyperpage{8} \indexspace \item \texttt {MultiplyFreeZGLetterWithGroupElt}, \hyperpage{8} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter}\discretionary {-}{}{}\texttt {With}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elt{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {MultiplyFreeZGLetterWithGroupEltNC}, \hyperpage{10} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Letter}\discretionary {-}{}{}\texttt {With}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elt}\discretionary {-}{}{}\texttt {N}\discretionary {-}{}{}\texttt {C{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {MultiplyFreeZGWordWithGroupElt}, \hyperpage{8} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Word}\discretionary {-}{}{}\texttt {With}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elt{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {MultiplyFreeZGWordWithGroupEltNC}, \hyperpage{10} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Free}\discretionary {-}{}{}\texttt {Z}\discretionary {-}{}{}\texttt {G}\discretionary {-}{}{}\texttt {Word}\discretionary {-}{}{}\texttt {With}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elt}\discretionary {-}{}{}\texttt {N}\discretionary {-}{}{}\texttt {C{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{12} \item \texttt {MultiplyGroupElts}, \hyperpage{8} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elts{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{11} \item \texttt {MultiplyGroupEltsNC}, \hyperpage{10} \item \texttt {Multiply}\discretionary {-}{}{}\texttt {Group}\discretionary {-}{}{}\texttt {Elts}\discretionary {-}{}{}\texttt {N}\discretionary {-}{}{}\texttt {C{\textunderscore }}\discretionary {-}{}{}\texttt {Large}\discretionary {-}{}{}\texttt {GroupRep}, \hyperpage{11} \indexspace \item \texttt {PartialContractingHomotopyLookup}, \hyperpage{14} \item \texttt {PartialContractingHomotopyLookupNC}, \hyperpage{14} \item \texttt {PositionInGroupOfResolution}, \hyperpage{7} \item \texttt {PositionInGroupOfResolutionNC}, \hyperpage{7} \indexspace \item \texttt {ResolutionOfContractingHomotopy}, \hyperpage{14} \indexspace \item \texttt {StrongestValidRepresentationForLetter}, \hyperpage{7} \item \texttt {StrongestValidRepresentationForWord}, \hyperpage{7} \end{theindex}