(O : Subuniverse) (T : Type) `{In O T} : @Reflects O T (prereflects_in O T). Proof. constructor; intros; rapply ooextendable_equiv. Defined.
Require Import HoTT.Basics HoTT.Types. Require Import Equiv.BiInv Extensions HProp HFiber NullHomotopy Limits.Pullback. Require Import Homotopy.IdentitySystems. Require Import Colimits.Pushout.