fact: Definition comma_1cell_eq {p q : comma_cone} (φ : comma_1cell p q) : φ ◃ comma_cone_cell q = lassociator _ _ _ • (comma_1cell_pr1 φ ▹ f) • comma_cone_cell p • ((comma_1cell_pr2 φ)^-1 ▹ g) • rassociator _ _ _ := pr222 φ.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence