Definition rightunitordata_from_monoidalcatdata {C : category} (MD : monoidalcategory_data C) : rightunitor_data MD MD := (pr1 (pr2 (pr2 (pr2 MD)))).
Require Import UniMath.Foundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Isos.