fact: Definition isaprop_preserves_associator {C D : category} {F : functor C D} {tuC : tensor_unit C} {tuD : tensor_unit D} (ptuF : functor_tensor_unit tuC tuD F) (assC : associator tuC) (assD : associator tuD) : isaprop (preserves_associator ptuF assC assD).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos