i1 : P = poset ({a,b,c,d,e,f},{(a,d),(d,f),(b,d),(b,e),(c,e),(e,f)}); |
i2 : P.Relations --note there is not a one to one correspondence between these and entries in the RelationMatrix o2 = {(a, d), (d, f), (b, d), (b, e), (c, e), (e, f)} o2 : List |
i3 : P.RelationMatrix o3 = | 1 0 0 1 0 1 | | 0 1 0 1 1 1 | | 0 0 1 0 1 1 | | 0 0 0 1 0 1 | | 0 0 0 0 1 1 | | 0 0 0 0 0 1 | 6 6 o3 : Matrix RR <--- RR 53 53 |