Exercise 4.4.7. Show that for \(C = \Sp \), the Hom spectrum \(\hom (X,Y) := \hom _{\Sp }(X,Y)\) may be explicitly described at level \(n\) by \[ \hom (X,Y)_n \quad \simeq \quad \Hom _{\Sp }(X,Y[n]). \]

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