Let f: RR be a Lebesgue measurable function. Prove hat there exists a Borel measurable function g: R → R such that |{x ER | f(x) = g(x)} = 0.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
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Let f: RR be a Lebesgue measurable function. Prove
that there exists a Borel measurable function g: R → R such that
|{r ER | f(x) = g(x)} = 0.
Transcribed Image Text:Let f: RR be a Lebesgue measurable function. Prove that there exists a Borel measurable function g: R → R such that |{r ER | f(x) = g(x)} = 0.
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