fact: Definition mon_structure (C : category) : UU := ∑ tuua : tensor_unit_unitors_associator C, triangle_pentagon tuua × unitors_associator_are_z_isos tuua.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos