Bourbaki

Example 1

Tag 0251, permanent. Cite it as [Bourbaki, Tag 0251].

Théories spectrales, chapter I, § 1. Spectres et caractères

Let X be a set and let A=KXA = K^X be the algebra of functions with values in K defined on X. The spectrum of an element ff of A is the set of values of ff.

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.

Cited by

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Cites

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Machine translation of the English, by gpt-5.4, gpt-5-6-mini, against glossary version 34. Not checked by a person. That model is a cut down version of the one the rest of this language was written by.