fact: Definition equiv_postcompose_cat_equiv_0gpd {A : Type} `{HasEquivs A} {x y z : A} (f : y $<~> z) : opyon_0gpd x y $<~> opyon_0gpd x z := emap (opyon_0gpd x) f.
imports: Basics.Overture Basics.Tactics WildCat.Core WildCat.Equiv WildCat.Universe WildCat.Opposite WildCat.FunctorCat WildCat.NatTrans WildCat.Prod WildCat.ZeroGroupoid