Bourbaki

Remark 4

Tag 03E9, permanent. Cite it as [Bourbaki, Tag 03E9].

Théories spectrales, chapter V, § 4. Représentations des groupes compacts

The Peter–Weyl theorem implies in particular that the natural continuous homomorphism of G into ∏π∈G^U(Eπ)\prod_{\pi\in\widehat{G}}\mathbf{U}(E_{\pi}) is injective.

Bourbaki sets the proof directly after the statement, and the corpus does not separate them, so what is above is the statement and its proof together.

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Cites

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Machine translation of the English, by gpt-5.4, against glossary version 34. Not checked by a person.