proposition: Lemma id_pred_id (a : C) : id_pred (identity a).
proof: Proof. apply idpath. Qed.
imports: UniMath.Folds.UnicodeNotations UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.UnivalenceAxiom UniMath.CategoryTheory.Core.Categories UniMath.Folds.folds_precat