Free iterative theories: a coalgebraic view

  • Authors:
  • Ji&rbreve/í/ Adá/mek;Stefan Milius;Ji&rbreve/í/ Velebil

  • Affiliations:
  • Institute of Theoretical Computer Science, Technical University, Braunschweig, Germany Email: adamek@iti.cs.tu-bs.de;Institute of Theoretical Computer Science, Technical University, Braunschweig, Germany Email: milius@iti.cs.tu-bs.de;Institute of Theoretical Computer Science, Technical University, Braunschweig, Germany Email: velebil@iti.cs.tu-bs.de

  • Venue:
  • Mathematical Structures in Computer Science
  • Year:
  • 2003

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Abstract

Every finitary endofunctor of $\Set$ is proved to generate a free iterative theory in the sense of Elgot. This work is based on coalgebras, specifically on parametric corecursion, and the proof is presented for categories more general than just $\Set$.