-- -*- M2-comint -*- hash: 12129188919360519354

i1 : n = 5;

i2 : isGraded chain n

o2 = true

i3 : isGraded booleanLattice n

o3 = true

i4 : P = poset {{1,2}, {1,3}, {3,4}, {2,5}, {4, 5}};

i5 : isGraded P

o5 = false

i6 : 
