3.3) Let X be an uncountable set and let A be the collection of subsets A of X such that either A or Aº is countable. Define µ(A) = 0 if A is countable and µ(A) = 1 if A is uncountable. Prove that u is a measure.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.4: Linear Programming
Problem 7E
icon
Related questions
Question
100%

Real Analyis question 3.3 dealing with measures. Please explain, thankyou in advance.

Measure: non-negative set function on a o - algebra A of subsets of some space X.
Properties:
1) μ (φ) - 0
2) If A; E A and A¡ N A; = Ø; i j, for i, j E N
= µ(U, A;) = E, µ(A;)...ountable additivity
i=1
3.3) Let X be an uncountable set and let A be the collection of subsets A of X such that either A or A°
is countable. Define µ(A) = 0 if A is countable and µ(A) = 1 if A is uncountable. Prove that u is
a measure.
Transcribed Image Text:Measure: non-negative set function on a o - algebra A of subsets of some space X. Properties: 1) μ (φ) - 0 2) If A; E A and A¡ N A; = Ø; i j, for i, j E N = µ(U, A;) = E, µ(A;)...ountable additivity i=1 3.3) Let X be an uncountable set and let A be the collection of subsets A of X such that either A or A° is countable. Define µ(A) = 0 if A is countable and µ(A) = 1 if A is uncountable. Prove that u is a measure.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Elements Of Modern Algebra
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Elementary Linear Algebra (MindTap Course List)
Elementary Linear Algebra (MindTap Course List)
Algebra
ISBN:
9781305658004
Author:
Ron Larson
Publisher:
Cengage Learning