proposition: Lemma put_front_inj (n : nat) (i : 'I_n.+1) : injective (put_front i).
proof: Proof. exact: (can_inj (put_backK i)). Qed.
imports: mathcomp(all_ssreflect all_algebra fingroup perm matrix) Reals mathcomp(Rstruct) ssrR Reals_ext realType_ext ssr_ext ssralg_ext bigop_ext logb ln_facts fdist jfdist_cond proba binary_entropy_function divergence