fact: Definition algebra_morphism {T : algebraic_theory} (A A' : algebra T) : UU := algebra_cat T⟦A, A'⟧.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Combinatorics.StandardFiniteSets UniMath.CategoryTheory.Core.Functors UniMath.AlgebraicTheories.AlgebraicTheories UniMath.AlgebraicTheories.Algebras UniMath.AlgebraicTheories.AlgebraCategoryCore