Section lemmas.
Context `{Funext}.
Variable C : PreCategory.
Variable F : C -> PreCategory.
Context
{w y z}
{f : Functor (F w) (F z)} {f0 : Functor (F w) (F y)}
{f2 : Functor (F y) (F z)}
{f5 : Functor (F w) (F z)}
{n2 : f <~=~> (f2 o f0)%functor}.

Lemma p_composition_of_coherent_iso_for_rewrite__isisomorphism_helper' XX
: @IsIsomorphism
(F w -> F z) f5 f
(n2 ^-1 o XX)%natural_transformation.