Corollary 3
Tag 08TM, permanent. Cite it as [Bourbaki, Tag 08TM].
Integration, IV, p. 53, § 4. Integrable functions and sets
If and are two measures on such that for every compact subset of , then .
For, it follows from Cor. 2 and the definition of a measure that, for every compact subset of , and take on the same values in .
Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.