An elementary proof of the Borel isomorphism theorem (Q1890636)
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scientific article; zbMATH DE number 756678
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | An elementary proof of the Borel isomorphism theorem |
scientific article; zbMATH DE number 756678 |
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An elementary proof of the Borel isomorphism theorem (English)
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27 July 1995
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We present a very elementary proof of the Borel isomorphism theorem. The traditional and more well known proof of this theorem uses the first separation principle for analytic sets. A proof avoiding the first separation principle is also known [\textit{K. Kuratowski}, Topology. Vol. I (1966; Zbl 0158.408)]. Our proof is perhaps the simplest.
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Polish space
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Borel sets
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Borel isomorphism theorem
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