fact: Definition inO_ooextendable_O_inverts (Z:Type@{k}) (E : forall (A : Type@{i}) (B : Type@{j}) (f : A -> B) (Oif : O_inverts f), ooExtendableAlong f (fun _ => Z)) : In O Z.
imports: HoTT.Basics HoTT.Types Equiv.BiInv Extensions HProp HFiber NullHomotopy Limits.Pullback PathAny Colimits.Pushout