fact: Definition nat_trans_fix_snd_arg: functor_fix_snd_arg C D E F d ⟹ functor_fix_snd_arg C D E F' d := tpair _ nat_trans_fix_snd_arg_data nat_trans_fix_snd_arg_ax.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.opp_precat