Computable Versions of Baire's Category Theorem

  • Authors:
  • Vasco Brattka

  • Affiliations:
  • -

  • Venue:
  • MFCS '01 Proceedings of the 26th International Symposium on Mathematical Foundations of Computer Science
  • Year:
  • 2001

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Abstract

We study different computable versions of Baire's Category Theorem in computable analysis. Similarly, as in constructive analysis, different logical forms of this theorem lead to different computational interpretations. We demonstrate that, analogously to the classical theorem, one of the computable versions of the theorem can be usedto construct interesting counterexamples, such as a computable but nowhere differentiable function.