exact this.symm
R : Sort ?u.16460
S : Sort u_3
T : Sort u_2
F : Groupoid R
G : Groupoid S
H : Groupoid T
Ψ : Functor F G
Φ : Functor G H
X : S
this : 𝟙 (Quiver.PreFunctor.obj Φ.toFunctor.toPreFunctor X) = Quiver.PreFunctor.map Φ.toFunctor.toPreFunctor (𝟙 X)
⊢ Quiver.PreFunctor.map Φ.toFunctor.toPreFunctor (𝟙 X) = 𝟙 (Quiver.PreFunctor.obj Φ.toFunctor.toPreFunctor X)
no goals