-- -*- M2-comint -*- hash: 3729539231373612591

i1 : X = projectiveBundle' 4

o1 = X

o1 : a flag bundle with subquotient ranks {4, 1}

i2 : F = OO_X(2) ++ OO_X(3) ++ OO_X(4)

o2 = F

o2 : an abstract sheaf of rank 3 on X

i3 : Y = projectiveBundle' F

o3 = Y

o3 : a flag bundle with subquotient ranks {2, 1}

i4 : dim Y

o4 = 6

i5 : integral (chern_1 OO_Y(1))^(dim Y)

o5 = 1351

i6 : bundles X/rank

o6 = (4, 1)

o6 : Sequence

i7 : 
