fact: Definition nattrans_arrow_mor_assoc {C:category} {c' c:C} {X X':[C^op,HSET]} (g:c'-->c) (x:c⇒X) (p:X-->X') : p ⟳ (x ⟲ g) = (p ⟳ x) ⟲ g := eqtohomot (nat_trans_ax p _ _ g) x.
imports: UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.Categories.HSET.MonoEpiIso UniMath.Foundations.Preamble UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics