Bourbaki

Proposition 3

Tag 094W, permanent. Cite it as [Bourbaki, Tag 094W].

Integration, chapter V, § 6. Images of a measure

— For a mapping f of X into a topological space G to be ν\nu*-measurable, it is necessary and sufficient that* f∘πf \circ \pi be μ\mu*-measurable.*

This is an immediate consequence of Prop. 3 of §4, No. 3.

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

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Cites

Transcribed from the printed volume. Not translated.