On Dart-Zobel Algorithm for testing regular type inclusion

  • Authors:
  • Lunjin Lu

  • Affiliations:
  • Oakland University, Rochester, MI

  • Venue:
  • ACM SIGPLAN Notices
  • Year:
  • 2001

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Abstract

This paper answers open questions about the correctness and the completeness of Dart-Zobel algorithm for testing the inclusion relation between two regular types. We show that the algorithm is complete but incorrect for regular types.