rename Retraction to RetractionOfCategories

diff --git a/src/SectionRetract_ch2_4.v b/src/SectionRetract_ch2_4.v
index 2d4f859..17ab24a 100644 (file)
--- a/src/SectionRetract_ch2_4.v
+++ b/src/SectionRetract_ch2_4.v
@@ -56,12 +56,12 @@ Instance retract_prod `{C:Category}`{D:Category}{a b:C}{d e:D}(r1:a ⊆ b)(r2:d
   simpl; split; apply retract_pf.
   Defined.
 
-Structure Retraction `{C:Category} `{D:Category} :=
+Structure RetractionOfCategories `{C:Category} `{D:Category} :=
 { retraction_section_fobj       : C -> D
 ; retraction_section            : Functor C D retraction_section_fobj
 ; retraction_retraction_fobj    : D -> C
 ; retraction_retraction         : Functor D C retraction_retraction_fobj
 ; retraction_composes           : retraction_section >>>> retraction_retraction ≃ functor_id _
 }.
-Implicit Arguments Retraction [ [Ob] [Hom] [Ob0] [Hom0] ].
-Coercion retraction_section : Retraction >-> Functor.
+Implicit Arguments RetractionOfCategories [ [Ob] [Hom] [Ob0] [Hom0] ].
+Coercion retraction_section : RetractionOfCategories >-> Functor.