-- -*- M2-comint -*- {* hash: 1153777724 *}

i1 : P = emptyPolyhedron 3

o1 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => -1
      number of facets => 0
      number of rays => 0
      number of vertices => 0

o1 : Polyhedron

i2 :