# Projection along affine hull

Let `n_1,...,n_r`

be integral points in a polyhedron `P`

. The paper I am reading refers to "the projection of `P`

along `aff(n_1,...,n_r)`

". Here `aff(n_1,...,n_r)`

is the affine hull of `n_1,...,n_r`

. Can I accomplish this projection in sage?