fact: Definition Vgraph_part_Vgraph m0 n0 : {set {set 'I_n}} := (fun n1 => n1 |: (\bigcup_(m1 in 'F n1 :\ m0) ('V(m1, n1) :\ n1))) @: (('V m0) :\ n0).
imports: mathcomp(all_ssreflect ssralg fingroup finalg perm zmodp) mathcomp(matrix) mathcomp(Rstruct) ssr_ext subgraph_partition tanner f2