Suppose A is a Borel measurable subset of [0, 1], m is Lebesgue measure, and & € (0,1). Prove that there exists a continuous function f: [0, 1]→ R such that 0 ≤f≤ 1 and m({x: f(x) #XA (x)}) < E.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter6: Vector Spaces
Section6.5: The Kernel And Range Of A Linear Transformation
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Suppose A is a Borel measurable subset of [0, 1], m
is Lebesgue measure, and ɛ E (0,1). Prove that there exists a
continuous function f: [0,1] → R such that 0 <ƒ<1 and
m({x: f(x) # XA (x)}) < e.
Transcribed Image Text:Suppose A is a Borel measurable subset of [0, 1], m is Lebesgue measure, and ɛ E (0,1). Prove that there exists a continuous function f: [0,1] → R such that 0 <ƒ<1 and m({x: f(x) # XA (x)}) < e.
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