fact: Definition bin_invert n := nat_of_bin (num_of_list (bin_invert_aux (list_of_num (bin_of_nat n)))).
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq choice fintype order bigop ssralg) mathcomp(div ssrnum ssrint rat prime path binomial) mathcomp(tuple finset) gaia(fibm)