fact: Definition monoidal_cat_triangle_eq : triangle_eq (pr1 (pr2 M)) (pr1 (pr2 (pr2 M))) (pr1 (pr2 (pr2 (pr2 M)))) (pr1 (pr2 (pr2 (pr2 (pr2 M))))) (pr1 (pr2 (pr2 (pr2 (pr2 (pr2 M)))))) := pr1 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 M)))))).
imports: UniMath.Foundations.PartD UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.ProductCategory UniMath.CategoryTheory.PrecategoryBinProduct UniMath.CategoryTheory.whiskering