Definition f (n : nat) : bool. Proof. induction n as [|n Hn]. - exact true. - exact false. Defined.
Require Import UniMath.MoreFoundations.Notations. Require Import UniMath.MoreFoundations.Bool. Require Import UniMath.Combinatorics.StandardFiniteSets. Require Import UniMath.Combinatorics.MoreLists. Require Import UniMath.Algebra.Universal.Algebras. Require Import UniMath.Algebra.Universal.VTerms.