-- -*- M2-comint -*- hash: 3784003346028892846

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

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

i2 : 1_X;

o2 : MultirationalMap (automorphism of X)

i3 : 0_X;

o3 : ProjectiveVariety, empty subscheme of PP^2 x PP^3 x PP^1

i4 : 
