The set of continuous nowhere differentiable functions: A correction (Q1070173)
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scientific article; zbMATH DE number 3933768
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The set of continuous nowhere differentiable functions: A correction |
scientific article; zbMATH DE number 3933768 |
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The set of continuous nowhere differentiable functions: A correction (English)
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1986
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Let M be the set of all continuous real-valued functions defined on the closed unit interval [0,1] which do not have a finite derivative anywhere. The purpose of this note is to complete the argument that M is a coanalytic set and is not a Borel set by correcting an error in the last paragraph of an earlier paper on this topic [ibid. 83, 199-205 (1979; Zbl 0387.46025)].
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set of continuous nowhere differentiable functions
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coanalytic set and is not a Borel
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