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https://math.answers.com/geometry/Are_the_real_numbers_a_borel_set

Are the real numbers a borel set? - Answers

Yes, since the set of real numbers can be expressed as a countable union of closed sets.In fact if we're talking about subsets of the real numbers (R), then by definition R is in all sigma-algebras of R including the Borel sigma-algebra, and so is a Borel set.



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Are the real numbers a borel set? - Answers

https://math.answers.com/geometry/Are_the_real_numbers_a_borel_set

Yes, since the set of real numbers can be expressed as a countable union of closed sets.In fact if we're talking about subsets of the real numbers (R), then by definition R is in all sigma-algebras of R including the Borel sigma-algebra, and so is a Borel set.



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https://math.answers.com/geometry/Are_the_real_numbers_a_borel_set

Are the real numbers a borel set? - Answers

Yes, since the set of real numbers can be expressed as a countable union of closed sets.In fact if we're talking about subsets of the real numbers (R), then by definition R is in all sigma-algebras of R including the Borel sigma-algebra, and so is a Borel set.

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      Yes, since the set of real numbers can be expressed as a countable union of closed sets.In fact if we're talking about subsets of the real numbers (R), then by definition R is in all sigma-algebras of R including the Borel sigma-algebra, and so is a Borel set.

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