The optional input given above is not relevant for Lie algebras. Instead of generators one may use gens. Observe that the output is a basis for the Ext-algebra as a vector space, and not as an algebra.
i1 : F=lieAlgebra{a,b,c} o1 = F o1 : LieAlgebra |
i2 : I=lieIdeal{a a b,a a c} o2 = I o2 : FGLieIdeal |
i3 : L=F/I o3 = L o3 : LieAlgebra |
i4 : E=extAlgebra(3,L) o4 = E o4 : ExtAlgebra |
i5 : gens E o5 = {ext_0, ext_1, ext_2, ext_3, ext_4} o5 : List |