The right (endo-)functor 𝑅, when acting on 𝑏 produces the function object 𝑎 ⇒ 𝑏 (or 𝑏^𝑎)
Again, 𝑎 is fixed. The adjunction between these two
functors is often written as:
− × 𝑎 ⊣ (−)
The mapping of hom-sets that underlies this adjunction is best seen by
redrawing the diagram that we used in the universal construction.