-- -*- M2-comint -*- {* hash: 602088129 *} i1 : C1 = posHull matrix {{1,0},{0,1},{1,1}} o1 = {ambient dimension => 3 } dimension of lineality space => 0 dimension of the cone => 2 number of facets => 2 number of rays => 2 o1 : Cone i2 : C2 = posHull matrix {{1,0,1},{0,1,0},{1,1,0}} o2 = {ambient dimension => 3 } dimension of lineality space => 0 dimension of the cone => 3 number of facets => 3 number of rays => 3 o2 : Cone i3 : C1 ? C2 o3 = < o3 : Keyword i4 :