Bourbaki

Proposition 2

Tag 05QZ, permanent. Cite it as [Bourbaki, Tag 05QZ].

Algebra, chapter II, § 6. Inverse and direct limits of modules

For every inverse system (Eα,fαβ)(E_\alpha, f_{\alpha \beta}) of AA-modules and every AA-module FF, the canonical mapping u↦(fα∘u)u \mapsto (f_\alpha \circ u) is a Z\mathbf{Z}-module isomorphism

(2)

lF:Hom⁡A(F,lim⁡←Eα)→lim⁡←Hom⁡A(F,Eα). l_F: \operatorname{Hom}_A(F, \lim_{\leftarrow} E_\alpha) \to \lim_{\leftarrow} \operatorname{Hom}_A(F, E_\alpha).

Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.

Cited by

Cites

Nothing.

Transcribed from the printed edition, 1998, Springer. Not translated.