fact: Definition relmodule_mor_comp {L M N : RelModule R} (φ : RelModule_Mor L M) (ψ : RelModule_Mor M N) : RelModule_Mor L N := ((λ a, φ a · ψ a),, is_relmodule_mor_comp φ ψ).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Monads.RelativeMonads