proposition: Lemma fdist1xx (a : A) : fdist1 a a = 1 :> R.
proof: Proof. by rewrite fdist1E eqxx. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup perm matrix) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR logb realType_ext ssr_ext ssralg_ext bigop_ext