GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
if not IsBound( VectorSpacesConstructorsLoaded ) then ReadPackage( "CAP", "examples/testfiles/VectorSpacesConstructors.gi" );; fi; vecspaces := CreateCapCategory( "VectorSpacesForSpectralSequenceTest" ); ReadPackage( "CAP", "examples/testfiles/VectorSpacesAllMethods.gi" ); LoadPackage( "HomologicalAlgebraForCAP" ); A := QVectorSpace( 2 ); CA := AsPointedCocomplex( A, 0 ); SetIsAbelianCategory( CapCategory( CA ), true ); CAA := AsPointedCocomplex( CA, 0 ); S := SpectralSequenceDifferential( CAA, 2, 0, 0 );