# If our superalgebra is a subalgebra of something else, then
# these vectors won't have the right coordinates for
# V.span_of_basis() unless we use V.from_vector() on them.
# If our superalgebra is a subalgebra of something else, then
# these vectors won't have the right coordinates for
# V.span_of_basis() unless we use V.from_vector() on them.