-- -*- M2-comint -*- hash: 1731860289334798393

i1 : M = matroid({{0,1},{2,3},{4,5}}, EntryMode => "circuits")

o1 = a "matroid" of rank 3 on 6 elements

o1 : Matroid

i2 : isPositivelyOriented M

o2 = false

i3 : 
