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Symmetric Monoidal Categories for Operads - Index of

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128 8 Adjunction and Embedding Properties<br />

We apply this result to the generating objects M = Fr ◦ R = R ⊗r .We<strong>for</strong>m<br />

a commutative diagram:<br />

HomM R (Fr ◦ R,N)<br />

SR<br />

HomF R (SR(Fr ◦ R), SR(N))<br />

�<br />

HomF R (S(Fr) ◦ U, SR(N))<br />

�<br />

�<br />

HomF R (U ⊗r , SR(N))<br />

�<br />

N<br />

� �<br />

�<br />

HomF (S(Fr), SR(N) ◦ R(−))<br />

�<br />

HomF (Id ⊗r , SR(N) ◦ R(−))<br />

HomM(Fr,N)<br />

S<br />

HomF (S(Fr), S(N))<br />

�<br />

�<br />

HomF (Id ⊗r , S(N))<br />

By proposition 8.2.2, the left-hand side composite represents the adjunction<br />

unit ηR(N) :N(r) → ΓR(SR(N)). By proposition 2.3.8, the right-hand<br />

side composite represents the adjunction unit η(N) :N(r) → Γ(S(N)). The<br />

bottom isomorphisms represent the isomorphisms ΓR(SR(N)) � Γ(SR(N) ◦<br />

R(−)) � Γ(S(N)) <strong>of</strong> lemma 8.3.1 and observation 8.3.2. Hence the commutativity<br />

<strong>of</strong> the diagram implies lemma 8.3.3. ⊓⊔<br />

The conclusion <strong>of</strong> theorem 8.A is an immediate consequence <strong>of</strong> this lemma<br />

and <strong>of</strong> proposition 2.3.12. ⊓⊔<br />

�<br />

.

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