-- -*- M2-comint -*- hash: 1731940566418667530

i1 : X = PP_QQ^({1,1,1},{2,1,3});

o1 : ProjectiveVariety, threefold in PP^2 x PP^1 x PP^3

i2 : ambient X;

o2 : ProjectiveVariety, PP^2 x PP^1 x PP^3

i3 : 
