{B A f g B' A' f' g'} (h : B -> B') (k : A -> A') (p : k o f == f' o h) (q : k o g == g' o h) (b : B) : ap (functor_coeq h k p q) (cglue b) = ap coeq (p b) @ cglue (h b) @ ap coeq (q b)^ := (Coeq_rec_beta_cglue _ _ _ b).
Require Import Basics. Require Import Types.Paths Types.Arrow Types.Sigma Types.Forall Types.Universe Types.Prod. Require Import Colimits.GraphQuotient.