Bourbaki

Example 1

Tag 08BY, permanent. Cite it as [Bourbaki, Tag 08BY].

Functions of a Real Variable, chapter IV, § 1. EXISTENCE THEOREMS

For a differential equation of the form x′=g(t)x' = g(t), where gg is regulated on II, every integral uu is clearly defined on all of II. One should note that uu can be bounded on II without g(t)g(t) being so.

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

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Transcribed from the printed volume. Not translated.