diagram,diagram_label,is_colimit,construction,construction_label cospan,cospan,0,pullback,pullback empty diagram,empty diagram,0,terminal object,terminal object empty diagram,empty diagram,1,initial object,initial object endomorphism,endomorphism,0,idempotent splitting,idempotent splitting endomorphism,endomorphism,1,idempotent splitting,idempotent splitting pair of parallel arrows,pair of parallel arrows,0,equalizer,equalizer pair of parallel arrows,pair of parallel arrows,1,coequalizer,coequalizer pair of points,pair of points,0,binary product,binary product pair of points,pair of points,1,binary sum,binary sum span,span,1,pushout,pushout tower,tower,0,directed limit,directed limit tower,tower,1,directed colimit,directed colimit