fact: Definition closed_under_pb : UU := ∏ (pb x y z : B) (f : x --> z) (g : y --> z) (p₁ : pb --> x) (p₂ : pb --> y) (γ : invertible_2cell (p₁ · f) (p₂ · g)), pred_ob D f → has_pb_ump (make_pb_cone pb p₁ p₂ γ) → pred_ob D p₂ × pred_mor D p₂ f p₁.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence UniMath.Bicategories.Morphisms.Adjunctions UniMath.Bicategories.Morphisms.FullyFaithful UniMath.Bicategories.Morphisms.DiscreteMorphisms UniMath.Bicategories.Morphisms.InternalStreetFibration UniMath.Bicategories.Morphisms.InternalStreetOpFibration UniMath.Bicategories.Morphisms.Properties.ContainsAdjEquiv UniMath.Bicategories.Morphisms.Properties.Composition UniMath.Bicategories.Morphisms.Properties.ClosedUnderPullback UniMath.Bicategories.Morphisms.Properties.FromInitial UniMath.Bicategories.Colimits.Initial UniMath.Bicategories.Limits.Pullbacks