Sort u →
  {α : Type u_1} →
    [inst : DecidableEq α] →
      [inst_1 : Fintype α] →
        {g : Equiv.Perm α} →
          g.Basis →
            {α' : Type u_1} →
              [inst' : DecidableEq α'] → [inst'_1 : Fintype α'] → {g' : Equiv.Perm α'} → g'.Basis → Sort u