isabelle/valid/induction_divisibility_9div10tonm1.thy

(*
  Authors: Wenda Li
*)

theory induction_divisibility_9div10tonm1
 imports
  Complex_Main
begin

theorem induction_divisibility_9div10tonm1:
  fixes n::nat
  shows "(9::nat) dvd 10^n - 1"
  sorry

end