fact: Definition O_rec_postcompose {A B C : Type@{i}} `{In O B} {C_inO : In O C} (f : A -> B) (g : B -> C) : g o O_rec (O := O) f == O_rec (O := O) (g o f).
imports: HoTT.Basics HoTT.Types Equiv.BiInv Extensions HProp HFiber NullHomotopy Limits.Pullback PathAny Colimits.Pushout