fact: Definition natequiv_opyon_equiv {A : Type} `{HasEquivs A} `{!HasMorExt A} {a b : A} : (b $<~> a) -> (opyon1 a $<~> opyon1 b).
imports: Basics.Overture Basics.Tactics WildCat.Core WildCat.Equiv WildCat.Universe WildCat.Opposite WildCat.FunctorCat WildCat.NatTrans WildCat.Prod WildCat.ZeroGroupoid