fact: Definition Pushout_rec_PO_rec (P : Type) (pushb : B -> P) (pushc : C -> P) (pusha : forall a : A, pushb (f a) = pushc (g a)) : Pushout_rec P pushb pushc pusha == PO_rec P pushb pushc pusha o equiv_pushout_PO.
imports: Basics Types Diagrams.Graph Diagrams.Diagram Diagrams.Span Diagrams.Cocone Colimits.Colimit