I, an instance of the type LieSubSpace, an instance of LieSubSpace, the kernel of $d$
Description
The optional input given above is not relevant for Lie algebras. If $d$ commutes with the differentials in the source and target of $d$, then the output is of type LieSubAlgebra. Otherwise, the output is of type LieSubSpace.
i1 : L = lieAlgebra({a,b,c},Weights=>{{1,0},{2,1},{3,2}},
Signs=>{1,1,1},LastWeightHomological=>true)
o1 = L
o1 : LieAlgebra