GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
1 2 3 [1XIndex[101X 4 5 [2XHOMALG_IO.Pictograms[102X 3.2-1 6 [2XhomalgIOMode[102X 3.1-1 7 [5XHomalgToCAS[105X .-3 8 [2XIsHomalgExternalRingRep[102X 4.1-1 9 10 11 ------------------------------------------------------- 12 13