fact: Definition mor_of_internal_sfib_over_preserves {B : bicat} {e₁ b₁ : B} {p₁ : e₁ --> b₁} {e₂ b₂ : B} {p₂ : e₂ --> b₂} {fb : b₁ --> b₂} (fe : mor_of_internal_sfib_over p₁ p₂ fb) : mor_preserves_cartesian p₁ p₂ fe := pr12 fe.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.StreetFibration UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence