fact: Definition θ_map_1 {B C:category} {F' F:[B, C]} {X : [B, [C^op, HSET]]} : F' --> F -> F ⟹ X -> θ_1 F' X := λ p xe b, pr1 xe b ⟲ p ◽ b.
imports: UniMath.Foundations.Preamble UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.RepresentableFunctors.Precategories UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.yoneda UniMath.CategoryTheory.Categories.HSET.Core