GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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##
#W ReprActT.gi FGA package Christian Sievers
##
## Trivial cases for RepresentativeAction
##
## This is generally applicable and not needed for the FGA package,
## so maybe it should move to the GAP library.
##
#Y 2003 - 2012
##
InstallOtherMethod( RepresentativeActionOp,
"trivial general cases",
IsCollsElmsElmsX,
[ IsGroup, IsObject, IsObject, IsFunction ],
function( G, d, e, act)
local result;
if act=OnRight then
result := LeftQuotient( d, e );
elif act=OnLeftInverse then
result := d / e;
else
TryNextMethod();
fi;
if result in G then
return result;
else
return fail;
fi;
end );
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##
#E