Lemma of the day

Let (C, O) be a ringed site. Given K,L,M in D(O) there is a canonical morphism RHom(L,M) ⊗ RHom(K,L) ⟶ RHom(K,M) in D(O). See Lemma Tag 0A98.

Slogan: Composition on RSheafHom.