fact: Definition RelModule_Mor_equiv (hs : has_homsets D) {M N : RelModule R} (φ ψ : RelModule_Mor M N) : φ = ψ ≃ (pr1 φ = pr1 ψ).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Monads.RelativeMonads