Definition id1_lwhisker {a b : C} {f g : C⟦a, b⟧} (x : f ==> g) : (identity a ◃ x) = two_cat_lunitor f • x • two_cat_linvunitor g.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Setcategories. Require Import UniMath.CategoryTheory.Core.Univalence.