fact: Definition emap_inv {A B : Type} `{HasEquivs A} `{HasEquivs B} (F : A -> B) `{!Is0Functor F, !Is1Functor F} {a b : A} (e : a $<~> b) : cate_fun (emap F e)^-1$ $== cate_fun (emap F e^-1$).
imports: Basics.Utf8 Basics.Overture Basics.Tactics WildCat.Core