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Equivalences Among Relational Expressions with the Union and Difference Operators

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Published:01 October 1980Publication History
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          cover image Journal of the ACM
          Journal of the ACM  Volume 27, Issue 4
          Oct. 1980
          251 pages
          ISSN:0004-5411
          EISSN:1557-735X
          DOI:10.1145/322217
          Issue’s Table of Contents

          Copyright © 1980 ACM

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          Association for Computing Machinery

          New York, NY, United States

          Publication History

          • Published: 1 October 1980
          Published in jacm Volume 27, Issue 4

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