Definition laxleftunitor_to_lunitor_data {C : category} {tu : tensor_unit C} (lu : laxleftunitor tu) : leftunitor_data tu tu := pr1 lu.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors. Require Import UniMath.CategoryTheory.Monoidal.Categories.