fact: Definition bisim_pullback_structure_prop2 (S1 S2 S3:F_coalgebra) R12 R23 (hyp1:is_F_bisimulation _ _ R12) (hyp2:is_F_bisimulation _ _ R23) (x:weak_pullback_Rel S1 S2 S3 R12 R23): proj1_sig hyp2 (snd (proj1_sig x)) = lift_F_ _ _ (fun x0:weak_pullback_Rel S1 S2 S3 R12 R23=>(snd (proj1_sig x0))) (bisim_pullback_structure _ _ _ _ _ hyp1 hyp2 x).
imports: ExtensionalFunctor Setoid