fact: Definition Fgraph_part_fnode (n0 : 'I_n) : {set {set 'I_m}} := (fun m => 'F(m, n0)) @: ('F n0).
imports: mathcomp(all_ssreflect ssralg fingroup finalg perm zmodp) mathcomp(matrix) mathcomp(Rstruct) ssr_ext subgraph_partition tanner f2